@tko/computed/dist/index.cjs.map

TKO Computed Observables

{
  "version": 3,
  "sources": ["../index.ts", "../../utils/dist/array.js", "../../utils/dist/options.js", "../../utils/dist/error.js", "../../utils/dist/async.js", "../../utils/dist/ie.js", "../../utils/dist/object.js", "../../utils/dist/function.js", "../../utils/dist/symbol.js", "../../utils/dist/jquery.js", "../../utils/dist/dom/info.js", "../../utils/dist/dom/data.js", "../../utils/dist/dom/disposal.js", "../../utils/dist/dom/event.js", "../../utils/dist/dom/virtualElements.js", "../../utils/dist/dom/html.js", "../../utils/dist/dom/selectExtensions.js", "../../utils/dist/tasks.js", "../../observable/dist/dependencyDetection.js", "../../observable/dist/subscribableSymbol.js", "../../observable/dist/defer.js", "../../observable/dist/Subscription.js", "../../observable/dist/extenders.js", "../../observable/dist/subscribable.js", "../../observable/dist/observable.js", "../../observable/dist/observableArray.changeTracking.js", "../../observable/dist/observableArray.js", "../src/computed.ts", "../src/throttleExtender.ts", "../src/proxy.ts", "../src/when.ts"],
  "sourcesContent": ["export * from './src'\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nconst { isArray } = Array;\nexport function arrayForEach(array, action, thisArg) {\n  if (arguments.length > 2) {\n    action = action.bind(thisArg);\n  }\n  for (let i = 0, j = array.length; i < j; ++i) {\n    action(array[i], i, array);\n  }\n}\nexport function arrayIndexOf(array, item) {\n  return (isArray(array) ? array : [...array]).indexOf(item);\n}\nexport function arrayFirst(array, predicate, predicateOwner) {\n  return (isArray(array) ? array : [...array]).find(predicate, predicateOwner);\n}\nexport function arrayMap(array = [], mapping, thisArg) {\n  if (arguments.length > 2) {\n    mapping = mapping.bind(thisArg);\n  }\n  return array === null ? [] : Array.from(array, mapping);\n}\nexport function arrayRemoveItem(array, itemToRemove) {\n  var index = arrayIndexOf(array, itemToRemove);\n  if (index > 0) {\n    array.splice(index, 1);\n  } else if (index === 0) {\n    array.shift();\n  }\n}\nexport function arrayGetDistinctValues(array = []) {\n  const seen = /* @__PURE__ */ new Set();\n  if (array === null) {\n    return [];\n  }\n  return (isArray(array) ? array : [...array]).filter((item) => seen.has(item) ? false : seen.add(item));\n}\nexport function arrayFilter(array, predicate, thisArg) {\n  if (arguments.length > 2) {\n    predicate = predicate.bind(thisArg);\n  }\n  return array === null ? [] : (isArray(array) ? array : [...array]).filter(predicate);\n}\nexport function arrayPushAll(array, valuesToPush) {\n  if (isArray(valuesToPush)) {\n    array.push.apply(array, valuesToPush);\n  } else {\n    for (var i = 0, j = valuesToPush.length; i < j; i++) {\n      array.push(valuesToPush[i]);\n    }\n  }\n  return array;\n}\nexport function addOrRemoveItem(array, value, included) {\n  var existingEntryIndex = arrayIndexOf(typeof array.peek === \"function\" ? array.peek() : array, value);\n  if (existingEntryIndex < 0) {\n    if (included) {\n      array.push(value);\n    }\n  } else {\n    if (!included) {\n      array.splice(existingEntryIndex, 1);\n    }\n  }\n}\nexport function makeArray(arrayLikeObject) {\n  return Array.from(arrayLikeObject);\n}\nexport function range(min, max) {\n  min = typeof min === \"function\" ? min() : min;\n  max = typeof max === \"function\" ? max() : max;\n  var result = [];\n  for (var i = min; i <= max; i++) {\n    result.push(i);\n  }\n  return result;\n}\nexport function findMovesInArrayComparison(left, right, limitFailedCompares) {\n  if (left.length && right.length) {\n    var failedCompares, l, r, leftItem, rightItem;\n    for (failedCompares = l = 0; (!limitFailedCompares || failedCompares < limitFailedCompares) && (leftItem = left[l]); ++l) {\n      for (r = 0; rightItem = right[r]; ++r) {\n        if (leftItem.value === rightItem.value) {\n          leftItem.moved = rightItem.index;\n          rightItem.moved = leftItem.index;\n          right.splice(r, 1);\n          failedCompares = r = 0;\n          break;\n        }\n      }\n      failedCompares += r;\n    }\n  }\n}\nconst statusNotInOld = \"added\";\nconst statusNotInNew = \"deleted\";\nexport function compareArrays(oldArray, newArray, options) {\n  options = typeof options === \"boolean\" ? { dontLimitMoves: options } : options || {};\n  oldArray = oldArray || [];\n  newArray = newArray || [];\n  if (oldArray.length < newArray.length) {\n    return compareSmallArrayToBigArray(oldArray, newArray, statusNotInOld, statusNotInNew, options);\n  } else {\n    return compareSmallArrayToBigArray(newArray, oldArray, statusNotInNew, statusNotInOld, options);\n  }\n}\nfunction compareSmallArrayToBigArray(smlArray, bigArray, statusNotInSml, statusNotInBig, options) {\n  var myMin = Math.min, myMax = Math.max, editDistanceMatrix = [], smlIndex, smlIndexMax = smlArray.length, bigIndex, bigIndexMax = bigArray.length, compareRange = bigIndexMax - smlIndexMax || 1, maxDistance = smlIndexMax + bigIndexMax + 1, thisRow, lastRow, bigIndexMaxForRow, bigIndexMinForRow;\n  for (smlIndex = 0; smlIndex <= smlIndexMax; smlIndex++) {\n    lastRow = thisRow;\n    editDistanceMatrix.push(thisRow = []);\n    bigIndexMaxForRow = myMin(bigIndexMax, smlIndex + compareRange);\n    bigIndexMinForRow = myMax(0, smlIndex - 1);\n    for (bigIndex = bigIndexMinForRow; bigIndex <= bigIndexMaxForRow; bigIndex++) {\n      if (!bigIndex) {\n        thisRow[bigIndex] = smlIndex + 1;\n      } else if (!smlIndex) {\n        thisRow[bigIndex] = bigIndex + 1;\n      } else if (smlArray[smlIndex - 1] === bigArray[bigIndex - 1]) {\n        thisRow[bigIndex] = lastRow[bigIndex - 1];\n      } else {\n        var northDistance = lastRow[bigIndex] || maxDistance;\n        var westDistance = thisRow[bigIndex - 1] || maxDistance;\n        thisRow[bigIndex] = myMin(northDistance, westDistance) + 1;\n      }\n    }\n  }\n  var editScript = [], meMinusOne, notInSml = [], notInBig = [];\n  for (smlIndex = smlIndexMax, bigIndex = bigIndexMax; smlIndex || bigIndex; ) {\n    meMinusOne = editDistanceMatrix[smlIndex][bigIndex] - 1;\n    if (bigIndex && meMinusOne === editDistanceMatrix[smlIndex][bigIndex - 1]) {\n      notInSml.push(editScript[editScript.length] = {\n        \"status\": statusNotInSml,\n        \"value\": bigArray[--bigIndex],\n        \"index\": bigIndex\n      });\n    } else if (smlIndex && meMinusOne === editDistanceMatrix[smlIndex - 1][bigIndex]) {\n      notInBig.push(editScript[editScript.length] = {\n        \"status\": statusNotInBig,\n        \"value\": smlArray[--smlIndex],\n        \"index\": smlIndex\n      });\n    } else {\n      --bigIndex;\n      --smlIndex;\n      if (!options.sparse) {\n        editScript.push({\n          \"status\": \"retained\",\n          \"value\": bigArray[bigIndex]\n        });\n      }\n    }\n  }\n  findMovesInArrayComparison(notInBig, notInSml, !options.dontLimitMoves && smlIndexMax * 10);\n  return editScript.reverse();\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nconst options = {\n  deferUpdates: false,\n  useOnlyNativeEvents: false,\n  protoProperty: \"__ko_proto__\",\n  defaultBindingAttribute: \"data-bind\",\n  allowVirtualElements: true,\n  bindingGlobals: /* @__PURE__ */ Object.create(null),\n  bindingProviderInstance: null,\n  createChildContextWithAs: false,\n  jQuery: globalThis.jQuery,\n  Promise: globalThis.Promise,\n  taskScheduler: null,\n  debug: false,\n  global: globalThis,\n  document: globalThis.document,\n  filters: {},\n  includeDestroyed: false,\n  foreachHidesDestroyed: false,\n  onError: function(e) {\n    throw e;\n  },\n  set: function(name, value) {\n    options[name] = value;\n  },\n  getBindingHandler() {\n  },\n  cleanExternalData() {\n  }\n};\nObject.defineProperty(options, \"$\", {\n  get: function() {\n    return options.jQuery;\n  }\n});\nexport default options;\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport options from \"./options\";\nexport function catchFunctionErrors(delegate) {\n  if (!options.onError) {\n    return delegate;\n  }\n  return (...args) => {\n    try {\n      return delegate(...args);\n    } catch (err) {\n      options.onError(err);\n    }\n  };\n}\nexport function deferError(error) {\n  safeSetTimeout(function() {\n    throw error;\n  }, 0);\n}\nexport function safeSetTimeout(handler, timeout) {\n  return setTimeout(catchFunctionErrors(handler), timeout);\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { safeSetTimeout } from \"./error\";\nexport function throttle(callback, timeout) {\n  var timeoutInstance;\n  return function(...args) {\n    if (!timeoutInstance) {\n      timeoutInstance = safeSetTimeout(function() {\n        timeoutInstance = void 0;\n        callback(...args);\n      }, timeout);\n    }\n  };\n}\nexport function debounce(callback, timeout) {\n  var timeoutInstance;\n  return function(...args) {\n    clearTimeout(timeoutInstance);\n    timeoutInstance = safeSetTimeout(() => callback(...args), timeout);\n  };\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport options from \"./options\";\nconst ieVersion = options.document && function() {\n  var version = 3, div = options.document.createElement(\"div\"), iElems = div.getElementsByTagName(\"i\");\n  while (div.innerHTML = \"<!--[if gt IE \" + ++version + \"]><i></i><![endif]-->\", iElems[0]) {\n  }\n  if (!version) {\n    const userAgent = window.navigator.userAgent;\n    return ua.match(/MSIE ([^ ]+)/) || ua.match(/rv:([^ )]+)/);\n  }\n  return version > 4 ? version : void 0;\n}();\nconst isIe6 = ieVersion === 6;\nconst isIe7 = ieVersion === 7;\nexport { ieVersion, isIe6, isIe7 };\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nexport function hasOwnProperty(obj, propName) {\n  return Object.prototype.hasOwnProperty.call(obj, propName);\n}\nexport function isObjectLike(obj) {\n  if (obj === null) {\n    return false;\n  }\n  return typeof obj === \"object\" || typeof obj === \"function\";\n}\nexport function extend(target, source) {\n  if (source) {\n    for (var prop in source) {\n      if (hasOwnProperty(source, prop)) {\n        target[prop] = source[prop];\n      }\n    }\n  }\n  return target;\n}\nexport function objectForEach(obj, action) {\n  for (var prop in obj) {\n    if (hasOwnProperty(obj, prop)) {\n      action(prop, obj[prop]);\n    }\n  }\n}\nexport function objectMap(source, mapping, thisArg) {\n  if (!source) {\n    return source;\n  }\n  if (arguments.length > 2) {\n    mapping = mapping.bind(thisArg);\n  }\n  var target = {};\n  for (var prop in source) {\n    if (hasOwnProperty(source, prop)) {\n      target[prop] = mapping(source[prop], prop, source);\n    }\n  }\n  return target;\n}\nexport function getObjectOwnProperty(obj, propName) {\n  return hasOwnProperty(obj, propName) ? obj[propName] : void 0;\n}\nexport function clonePlainObjectDeep(obj, seen) {\n  if (!seen) {\n    seen = [];\n  }\n  if (!obj || typeof obj !== \"object\" || obj.constructor !== Object || seen.indexOf(obj) !== -1) {\n    return obj;\n  }\n  seen.push(obj);\n  var result = {};\n  for (var prop in obj) {\n    if (hasOwnProperty(obj, prop)) {\n      result[prop] = clonePlainObjectDeep(obj[prop], seen);\n    }\n  }\n  return result;\n}\nexport function safeStringify(value) {\n  const seen = /* @__PURE__ */ new Set();\n  return JSON.stringify(value, (k, v) => {\n    if (seen.has(v)) {\n      return \"...\";\n    }\n    if (typeof v === \"object\") {\n      seen.add(v);\n    }\n    return v;\n  });\n}\nexport function isThenable(object) {\n  return isObjectLike(object) && typeof object.then === \"function\";\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nfunction testOverwrite() {\n  try {\n    Object.defineProperty(function x() {\n    }, \"length\", {});\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\nexport const functionSupportsLengthOverwrite = testOverwrite();\nexport function overwriteLengthPropertyIfSupported(fn, descriptor) {\n  if (functionSupportsLengthOverwrite) {\n    Object.defineProperty(fn, \"length\", descriptor);\n  }\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nexport var useSymbols = typeof Symbol === \"function\";\nexport function createSymbolOrString(identifier) {\n  return useSymbols ? Symbol(identifier) : identifier;\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport options from \"./options\";\nexport var jQueryInstance = options.global && options.global.jQuery;\nexport function jQuerySetInstance(jquery) {\n  options.jQuery = jQueryInstance = jquery;\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { arrayFirst } from \"../array\";\nexport function domNodeIsContainedBy(node, containedByNode) {\n  if (node === containedByNode) {\n    return true;\n  }\n  if (node.nodeType === 11) {\n    return false;\n  }\n  if (containedByNode.contains) {\n    return containedByNode.contains(node.nodeType !== 1 ? node.parentNode : node);\n  }\n  if (containedByNode.compareDocumentPosition) {\n    return (containedByNode.compareDocumentPosition(node) & 16) == 16;\n  }\n  while (node && node != containedByNode) {\n    node = node.parentNode;\n  }\n  return !!node;\n}\nexport function domNodeIsAttachedToDocument(node) {\n  return domNodeIsContainedBy(node, node.ownerDocument.documentElement);\n}\nexport function anyDomNodeIsAttachedToDocument(nodes) {\n  return !!arrayFirst(nodes, domNodeIsAttachedToDocument);\n}\nexport function tagNameLower(element) {\n  return element && element.tagName && element.tagName.toLowerCase();\n}\nexport function isDomElement(obj) {\n  if (window.HTMLElement) {\n    return obj instanceof HTMLElement;\n  } else {\n    return obj && obj.tagName && obj.nodeType === 1;\n  }\n}\nexport function isDocumentFragment(obj) {\n  if (window.DocumentFragment) {\n    return obj instanceof DocumentFragment;\n  } else {\n    return obj && obj.nodeType === 11;\n  }\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { ieVersion } from \"../ie\";\nconst datastoreTime = new Date().getTime();\nconst dataStoreKeyExpandoPropertyName = `__ko__${datastoreTime}`;\nconst dataStoreSymbol = Symbol(\"Knockout data\");\nvar dataStore;\nlet uniqueId = 0;\nconst modern = {\n  getDataForNode(node, createIfNotFound) {\n    let dataForNode = node[dataStoreSymbol];\n    if (!dataForNode && createIfNotFound) {\n      dataForNode = node[dataStoreSymbol] = {};\n    }\n    return dataForNode;\n  },\n  clear(node) {\n    if (node[dataStoreSymbol]) {\n      delete node[dataStoreSymbol];\n      return true;\n    }\n    return false;\n  }\n};\nconst IE = {\n  getDataforNode(node, createIfNotFound) {\n    let dataStoreKey = node[dataStoreKeyExpandoPropertyName];\n    const hasExistingDataStore = dataStoreKey && dataStoreKey !== \"null\" && dataStore[dataStoreKey];\n    if (!hasExistingDataStore) {\n      if (!createIfNotFound) {\n        return void 0;\n      }\n      dataStoreKey = node[dataStoreKeyExpandoPropertyName] = \"ko\" + uniqueId++;\n      dataStore[dataStoreKey] = {};\n    }\n    return dataStore[dataStoreKey];\n  },\n  clear(node) {\n    const dataStoreKey = node[dataStoreKeyExpandoPropertyName];\n    if (dataStoreKey) {\n      delete dataStore[dataStoreKey];\n      node[dataStoreKeyExpandoPropertyName] = null;\n      return true;\n    }\n    return false;\n  }\n};\nconst { getDataForNode, clear } = ieVersion ? IE : modern;\nexport function nextKey() {\n  return uniqueId++ + dataStoreKeyExpandoPropertyName;\n}\nfunction get(node, key) {\n  const dataForNode = getDataForNode(node, false);\n  return dataForNode && dataForNode[key];\n}\nfunction set(node, key, value) {\n  var dataForNode = getDataForNode(node, value !== void 0);\n  dataForNode && (dataForNode[key] = value);\n}\nfunction getOrSet(node, key, value) {\n  const dataForNode = getDataForNode(node, true);\n  return dataForNode[key] || (dataForNode[key] = value);\n}\nexport { get, set, getOrSet, clear };\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport * as domData from \"./data\";\nimport { default as options } from \"../options\";\nimport { arrayRemoveItem, arrayIndexOf } from \"../array\";\nimport { jQueryInstance } from \"../jquery\";\nvar domDataKey = domData.nextKey();\nvar cleanableNodeTypes = { 1: true, 8: true, 9: true };\nvar cleanableNodeTypesWithDescendants = { 1: true, 9: true };\nfunction getDisposeCallbacksCollection(node, createIfNotFound) {\n  var allDisposeCallbacks = domData.get(node, domDataKey);\n  if (allDisposeCallbacks === void 0 && createIfNotFound) {\n    allDisposeCallbacks = [];\n    domData.set(node, domDataKey, allDisposeCallbacks);\n  }\n  return allDisposeCallbacks;\n}\nfunction destroyCallbacksCollection(node) {\n  domData.set(node, domDataKey, void 0);\n}\nfunction cleanSingleNode(node) {\n  var callbacks = getDisposeCallbacksCollection(node, false);\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (let i = 0; i < callbacks.length; i++) {\n      callbacks[i](node);\n    }\n  }\n  domData.clear(node);\n  for (let i = 0, j = otherNodeCleanerFunctions.length; i < j; ++i) {\n    otherNodeCleanerFunctions[i](node);\n  }\n  if (options.cleanExternalData) {\n    options.cleanExternalData(node);\n  }\n  if (cleanableNodeTypesWithDescendants[node.nodeType]) {\n    cleanNodesInList(node.childNodes, true);\n  }\n}\nfunction cleanNodesInList(nodeList, onlyComments) {\n  const cleanedNodes = [];\n  let lastCleanedNode;\n  for (var i = 0; i < nodeList.length; i++) {\n    if (!onlyComments || nodeList[i].nodeType === 8) {\n      cleanSingleNode(cleanedNodes[cleanedNodes.length] = lastCleanedNode = nodeList[i]);\n      if (nodeList[i] !== lastCleanedNode) {\n        while (i-- && arrayIndexOf(cleanedNodes, nodeList[i]) === -1) {\n        }\n      }\n    }\n  }\n}\nexport function addDisposeCallback(node, callback) {\n  if (typeof callback !== \"function\") {\n    throw new Error(\"Callback must be a function\");\n  }\n  getDisposeCallbacksCollection(node, true).push(callback);\n}\nexport function removeDisposeCallback(node, callback) {\n  var callbacksCollection = getDisposeCallbacksCollection(node, false);\n  if (callbacksCollection) {\n    arrayRemoveItem(callbacksCollection, callback);\n    if (callbacksCollection.length === 0) {\n      destroyCallbacksCollection(node);\n    }\n  }\n}\nexport function cleanNode(node) {\n  if (cleanableNodeTypes[node.nodeType]) {\n    cleanSingleNode(node);\n    if (cleanableNodeTypesWithDescendants[node.nodeType]) {\n      cleanNodesInList(node.getElementsByTagName(\"*\"));\n    }\n  }\n  return node;\n}\nexport function removeNode(node) {\n  cleanNode(node);\n  if (node.parentNode) {\n    node.parentNode.removeChild(node);\n  }\n}\nexport const otherNodeCleanerFunctions = [];\nexport function addCleaner(fn) {\n  otherNodeCleanerFunctions.push(fn);\n}\nexport function removeCleaner(fn) {\n  const fnIndex = otherNodeCleanerFunctions.indexOf(fn);\n  if (fnIndex >= 0) {\n    otherNodeCleanerFunctions.splice(fnIndex, 1);\n  }\n}\nexport function cleanjQueryData(node) {\n  var jQueryCleanNodeFn = jQueryInstance ? jQueryInstance.cleanData : null;\n  if (jQueryCleanNodeFn) {\n    jQueryCleanNodeFn([node]);\n  }\n}\notherNodeCleanerFunctions.push(cleanjQueryData);\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { objectForEach } from \"../object\";\nimport { jQueryInstance } from \"../jquery\";\nimport { ieVersion } from \"../ie\";\nimport { catchFunctionErrors } from \"../error\";\nimport { tagNameLower } from \"./info\";\nimport { addDisposeCallback } from \"./disposal\";\nimport options from \"../options\";\nvar knownEvents = {}, knownEventTypesByEventName = {};\nvar keyEventTypeName = options.global.navigator && /Firefox\\/2/i.test(options.global.navigator.userAgent) ? \"KeyboardEvent\" : \"UIEvents\";\nknownEvents[keyEventTypeName] = [\"keyup\", \"keydown\", \"keypress\"];\nknownEvents[\"MouseEvents\"] = [\n  \"click\",\n  \"dblclick\",\n  \"mousedown\",\n  \"mouseup\",\n  \"mousemove\",\n  \"mouseover\",\n  \"mouseout\",\n  \"mouseenter\",\n  \"mouseleave\"\n];\nobjectForEach(knownEvents, function(eventType, knownEventsForType) {\n  if (knownEventsForType.length) {\n    for (var i = 0, j = knownEventsForType.length; i < j; i++) {\n      knownEventTypesByEventName[knownEventsForType[i]] = eventType;\n    }\n  }\n});\nfunction isClickOnCheckableElement(element, eventType) {\n  if (tagNameLower(element) !== \"input\" || !element.type)\n    return false;\n  if (eventType.toLowerCase() != \"click\")\n    return false;\n  var inputType = element.type;\n  return inputType == \"checkbox\" || inputType == \"radio\";\n}\nvar eventsThatMustBeRegisteredUsingAttachEvent = { \"propertychange\": true };\nlet jQueryEventAttachName;\nexport function registerEventHandler(element, eventType, handler, eventOptions = false) {\n  const wrappedHandler = catchFunctionErrors(handler);\n  const mustUseAttachEvent = ieVersion && eventsThatMustBeRegisteredUsingAttachEvent[eventType];\n  const mustUseNative = Boolean(eventOptions);\n  if (!options.useOnlyNativeEvents && !mustUseAttachEvent && !mustUseNative && jQueryInstance) {\n    if (!jQueryEventAttachName) {\n      jQueryEventAttachName = typeof jQueryInstance(element).on === \"function\" ? \"on\" : \"bind\";\n    }\n    jQueryInstance(element)[jQueryEventAttachName](eventType, wrappedHandler);\n  } else if (!mustUseAttachEvent && typeof element.addEventListener === \"function\") {\n    element.addEventListener(eventType, wrappedHandler, eventOptions);\n  } else if (typeof element.attachEvent !== \"undefined\") {\n    const attachEventHandler = function(event) {\n      wrappedHandler.call(element, event);\n    };\n    const attachEventName = \"on\" + eventType;\n    element.attachEvent(attachEventName, attachEventHandler);\n    addDisposeCallback(element, function() {\n      element.detachEvent(attachEventName, attachEventHandler);\n    });\n  } else {\n    throw new Error(\"Browser doesn't support addEventListener or attachEvent\");\n  }\n}\nexport function triggerEvent(element, eventType) {\n  if (!(element && element.nodeType)) {\n    throw new Error(\"element must be a DOM node when calling triggerEvent\");\n  }\n  var useClickWorkaround = isClickOnCheckableElement(element, eventType);\n  if (!options.useOnlyNativeEvents && jQueryInstance && !useClickWorkaround) {\n    jQueryInstance(element).trigger(eventType);\n  } else if (typeof document.createEvent === \"function\") {\n    if (typeof element.dispatchEvent === \"function\") {\n      var eventCategory = knownEventTypesByEventName[eventType] || \"HTMLEvents\";\n      var event = document.createEvent(eventCategory);\n      event.initEvent(eventType, true, true, options.global, 0, 0, 0, 0, 0, false, false, false, false, 0, element);\n      element.dispatchEvent(event);\n    } else {\n      throw new Error(\"The supplied element doesn't support dispatchEvent\");\n    }\n  } else if (useClickWorkaround && element.click) {\n    element.click();\n  } else if (typeof element.fireEvent !== \"undefined\") {\n    element.fireEvent(\"on\" + eventType);\n  } else {\n    throw new Error(\"Browser doesn't support triggering events\");\n  }\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { emptyDomNode, setDomNodeChildren as setRegularDomNodeChildren } from \"./manipulation\";\nimport { removeNode } from \"./disposal\";\nimport { tagNameLower } from \"./info\";\nimport * as domData from \"./data\";\nimport options from \"../options\";\nvar commentNodesHaveTextProperty = options.document && options.document.createComment(\"test\").text === \"<!--test-->\";\nexport var startCommentRegex = commentNodesHaveTextProperty ? /^<!--\\s*ko(?:\\s+([\\s\\S]+))?\\s*-->$/ : /^\\s*ko(?:\\s+([\\s\\S]+))?\\s*$/;\nexport var endCommentRegex = commentNodesHaveTextProperty ? /^<!--\\s*\\/ko\\s*-->$/ : /^\\s*\\/ko\\s*$/;\nvar htmlTagsWithOptionallyClosingChildren = { \"ul\": true, \"ol\": true };\nexport function isStartComment(node) {\n  return node.nodeType == 8 && startCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);\n}\nexport function isEndComment(node) {\n  return node.nodeType == 8 && endCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);\n}\nfunction isUnmatchedEndComment(node) {\n  return isEndComment(node) && !domData.get(node, matchedEndCommentDataKey);\n}\nconst matchedEndCommentDataKey = \"__ko_matchedEndComment__\";\nexport function getVirtualChildren(startComment, allowUnbalanced) {\n  var currentNode = startComment;\n  var depth = 1;\n  var children = [];\n  while (currentNode = currentNode.nextSibling) {\n    if (isEndComment(currentNode)) {\n      domData.set(currentNode, matchedEndCommentDataKey, true);\n      depth--;\n      if (depth === 0) {\n        return children;\n      }\n    }\n    children.push(currentNode);\n    if (isStartComment(currentNode)) {\n      depth++;\n    }\n  }\n  if (!allowUnbalanced) {\n    throw new Error(\"Cannot find closing comment tag to match: \" + startComment.nodeValue);\n  }\n  return null;\n}\nfunction getMatchingEndComment(startComment, allowUnbalanced) {\n  var allVirtualChildren = getVirtualChildren(startComment, allowUnbalanced);\n  if (allVirtualChildren) {\n    if (allVirtualChildren.length > 0) {\n      return allVirtualChildren[allVirtualChildren.length - 1].nextSibling;\n    }\n    return startComment.nextSibling;\n  } else {\n    return null;\n  }\n}\nfunction getUnbalancedChildTags(node) {\n  var childNode = node.firstChild, captureRemaining = null;\n  if (childNode) {\n    do {\n      if (captureRemaining) {\n        captureRemaining.push(childNode);\n      } else if (isStartComment(childNode)) {\n        var matchingEndComment = getMatchingEndComment(childNode, true);\n        if (matchingEndComment) {\n          childNode = matchingEndComment;\n        } else {\n          captureRemaining = [childNode];\n        }\n      } else if (isEndComment(childNode)) {\n        captureRemaining = [childNode];\n      }\n    } while (childNode = childNode.nextSibling);\n  }\n  return captureRemaining;\n}\nexport var allowedBindings = {};\nexport var hasBindingValue = isStartComment;\nexport function childNodes(node) {\n  return isStartComment(node) ? getVirtualChildren(node) : node.childNodes;\n}\nexport function emptyNode(node) {\n  if (!isStartComment(node)) {\n    emptyDomNode(node);\n  } else {\n    var virtualChildren = childNodes(node);\n    for (var i = 0, j = virtualChildren.length; i < j; i++) {\n      removeNode(virtualChildren[i]);\n    }\n  }\n}\nexport function setDomNodeChildren(node, childNodes2) {\n  if (!isStartComment(node)) {\n    setRegularDomNodeChildren(node, childNodes2);\n  } else {\n    emptyNode(node);\n    const endCommentNode = node.nextSibling;\n    const parentNode = endCommentNode.parentNode;\n    for (var i = 0, j = childNodes2.length; i < j; ++i) {\n      parentNode.insertBefore(childNodes2[i], endCommentNode);\n    }\n  }\n}\nexport function prepend(containerNode, nodeToPrepend) {\n  if (!isStartComment(containerNode)) {\n    if (containerNode.firstChild) {\n      containerNode.insertBefore(nodeToPrepend, containerNode.firstChild);\n    } else {\n      containerNode.appendChild(nodeToPrepend);\n    }\n  } else {\n    containerNode.parentNode.insertBefore(nodeToPrepend, containerNode.nextSibling);\n  }\n}\nexport function insertAfter(containerNode, nodeToInsert, insertAfterNode) {\n  if (!insertAfterNode) {\n    prepend(containerNode, nodeToInsert);\n  } else if (!isStartComment(containerNode)) {\n    if (insertAfterNode.nextSibling) {\n      containerNode.insertBefore(nodeToInsert, insertAfterNode.nextSibling);\n    } else {\n      containerNode.appendChild(nodeToInsert);\n    }\n  } else {\n    containerNode.parentNode.insertBefore(nodeToInsert, insertAfterNode.nextSibling);\n  }\n}\nexport function firstChild(node) {\n  if (!isStartComment(node)) {\n    if (node.firstChild && isEndComment(node.firstChild)) {\n      throw new Error(\"Found invalid end comment, as the first child of \" + node.outerHTML);\n    }\n    return node.firstChild;\n  }\n  if (!node.nextSibling || isEndComment(node.nextSibling)) {\n    return null;\n  }\n  return node.nextSibling;\n}\nexport function lastChild(node) {\n  let nextChild = firstChild(node);\n  let lastChildNode;\n  do {\n    lastChildNode = nextChild;\n  } while (nextChild = nextSibling(nextChild));\n  return lastChildNode;\n}\nexport function nextSibling(node) {\n  if (isStartComment(node)) {\n    node = getMatchingEndComment(node);\n  }\n  if (node.nextSibling && isEndComment(node.nextSibling)) {\n    if (isUnmatchedEndComment(node.nextSibling)) {\n      throw Error(\"Found end comment without a matching opening comment, as next sibling of \" + node.outerHTML);\n    }\n    return null;\n  } else {\n    return node.nextSibling;\n  }\n}\nexport function previousSibling(node) {\n  var depth = 0;\n  do {\n    if (node.nodeType === 8) {\n      if (isStartComment(node)) {\n        if (--depth === 0) {\n          return node;\n        }\n      } else if (isEndComment(node)) {\n        depth++;\n      }\n    } else {\n      if (depth === 0) {\n        return node;\n      }\n    }\n  } while (node = node.previousSibling);\n}\nexport function virtualNodeBindingValue(node) {\n  var regexMatch = (commentNodesHaveTextProperty ? node.text : node.nodeValue).match(startCommentRegex);\n  return regexMatch ? regexMatch[1] : null;\n}\nexport function normaliseVirtualElementDomStructure(elementVerified) {\n  if (!htmlTagsWithOptionallyClosingChildren[tagNameLower(elementVerified)]) {\n    return;\n  }\n  var childNode = elementVerified.firstChild;\n  if (childNode) {\n    do {\n      if (childNode.nodeType === 1) {\n        var unbalancedTags = getUnbalancedChildTags(childNode);\n        if (unbalancedTags) {\n          var nodeToInsertBefore = childNode.nextSibling;\n          for (var i = 0; i < unbalancedTags.length; i++) {\n            if (nodeToInsertBefore) {\n              elementVerified.insertBefore(unbalancedTags[i], nodeToInsertBefore);\n            } else {\n              elementVerified.appendChild(unbalancedTags[i]);\n            }\n          }\n        }\n      }\n    } while (childNode = childNode.nextSibling);\n  }\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { stringTrim } from \"../string\";\nimport { makeArray } from \"../array\";\nimport { emptyDomNode, moveCleanedNodesToContainerElement } from \"./manipulation\";\nimport { jQueryInstance } from \"../jquery\";\nimport { forceRefresh } from \"./fixes\";\nimport * as virtualElements from \"./virtualElements\";\nimport options from \"../options\";\nvar none = [0, \"\", \"\"], table = [1, \"<table>\", \"</table>\"], tbody = [2, \"<table><tbody>\", \"</tbody></table>\"], colgroup = [2, \"<table><tbody></tbody><colgroup>\", \"</colgroup></table>\"], tr = [3, \"<table><tbody><tr>\", \"</tr></tbody></table>\"], select = [1, \"<select multiple='multiple'>\", \"</select>\"], fieldset = [1, \"<fieldset>\", \"</fieldset>\"], map = [1, \"<map>\", \"</map>\"], object = [1, \"<object>\", \"</object>\"], lookup = {\n  \"area\": map,\n  \"col\": colgroup,\n  \"colgroup\": table,\n  \"caption\": table,\n  \"legend\": fieldset,\n  \"thead\": table,\n  \"tbody\": table,\n  \"tfoot\": table,\n  \"tr\": tbody,\n  \"td\": tr,\n  \"th\": tr,\n  \"option\": select,\n  \"optgroup\": select,\n  \"param\": object\n}, supportsTemplateTag = options.document && \"content\" in options.document.createElement(\"template\");\nfunction getWrap(tags) {\n  const m = tags.match(/^(?:<!--.*?-->\\s*?)*?<([a-z]+)[\\s>]/);\n  return m && lookup[m[1]] || none;\n}\nfunction simpleHtmlParse(html, documentContext) {\n  documentContext || (documentContext = document);\n  var windowContext = documentContext[\"parentWindow\"] || documentContext[\"defaultView\"] || window;\n  var tags = stringTrim(html).toLowerCase(), div = documentContext.createElement(\"div\"), wrap = getWrap(tags), depth = wrap[0];\n  var markup = \"ignored<div>\" + wrap[1] + html + wrap[2] + \"</div>\";\n  if (typeof windowContext[\"innerShiv\"] === \"function\") {\n    div.appendChild(windowContext[\"innerShiv\"](markup));\n  } else {\n    div.innerHTML = markup;\n  }\n  while (depth--) {\n    div = div.lastChild;\n  }\n  return makeArray(div.lastChild.childNodes);\n}\nfunction templateHtmlParse(html, documentContext) {\n  if (!documentContext) {\n    documentContext = document;\n  }\n  var template = documentContext.createElement(\"template\");\n  template.innerHTML = html;\n  return makeArray(template.content.childNodes);\n}\nfunction jQueryHtmlParse(html, documentContext) {\n  if (jQueryInstance.parseHTML) {\n    return jQueryInstance.parseHTML(html, documentContext) || [];\n  } else {\n    var elems = jQueryInstance.clean([html], documentContext);\n    if (elems && elems[0]) {\n      var elem = elems[0];\n      while (elem.parentNode && elem.parentNode.nodeType !== 11) {\n        elem = elem.parentNode;\n      }\n      if (elem.parentNode) {\n        elem.parentNode.removeChild(elem);\n      }\n    }\n    return elems;\n  }\n}\nexport function parseHtmlFragment(html, documentContext) {\n  return supportsTemplateTag ? templateHtmlParse(html, documentContext) : jQueryInstance ? jQueryHtmlParse(html, documentContext) : simpleHtmlParse(html, documentContext);\n}\nexport function parseHtmlForTemplateNodes(html, documentContext) {\n  const nodes = parseHtmlFragment(html, documentContext);\n  return nodes.length && nodes[0].parentElement || moveCleanedNodesToContainerElement(nodes);\n}\nexport function setHtml(node, html) {\n  emptyDomNode(node);\n  if (typeof html === \"function\") {\n    html = html();\n  }\n  if (html !== null && html !== void 0) {\n    if (typeof html !== \"string\") {\n      html = html.toString();\n    }\n    if (jQueryInstance && !supportsTemplateTag) {\n      jQueryInstance(node).html(html);\n    } else {\n      var parsedNodes = parseHtmlFragment(html, node.ownerDocument);\n      if (node.nodeType === 8) {\n        if (html === null) {\n          virtualElements.emptyNode(node);\n        } else {\n          virtualElements.setDomNodeChildren(node, parsedNodes);\n        }\n      } else {\n        for (var i = 0; i < parsedNodes.length; i++) {\n          node.appendChild(parsedNodes[i]);\n        }\n      }\n    }\n  }\n}\nexport function setTextContent(element, textContent) {\n  var value = typeof textContent === \"function\" ? textContent() : textContent;\n  if (value === null || value === void 0) {\n    value = \"\";\n  }\n  var innerTextNode = virtualElements.firstChild(element);\n  if (!innerTextNode || innerTextNode.nodeType != 3 || virtualElements.nextSibling(innerTextNode)) {\n    virtualElements.setDomNodeChildren(element, [element.ownerDocument.createTextNode(value)]);\n  } else {\n    innerTextNode.data = value;\n  }\n  forceRefresh(element);\n}\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { tagNameLower } from \"./info\";\nimport * as domData from \"./data\";\nvar hasDomDataExpandoProperty = Symbol(\"Knockout selectExtensions hasDomDataProperty\");\nexport var selectExtensions = {\n  optionValueDomDataKey: domData.nextKey(),\n  readValue: function(element) {\n    switch (tagNameLower(element)) {\n      case \"option\":\n        if (element[hasDomDataExpandoProperty] === true) {\n          return domData.get(element, selectExtensions.optionValueDomDataKey);\n        }\n        return element.value;\n      case \"select\":\n        return element.selectedIndex >= 0 ? selectExtensions.readValue(element.options[element.selectedIndex]) : void 0;\n      default:\n        return element.value;\n    }\n  },\n  writeValue: function(element, value, allowUnset) {\n    switch (tagNameLower(element)) {\n      case \"option\":\n        if (typeof value === \"string\") {\n          domData.set(element, selectExtensions.optionValueDomDataKey, void 0);\n          if (hasDomDataExpandoProperty in element) {\n            delete element[hasDomDataExpandoProperty];\n          }\n          element.value = value;\n        } else {\n          domData.set(element, selectExtensions.optionValueDomDataKey, value);\n          element[hasDomDataExpandoProperty] = true;\n          element.value = typeof value === \"number\" ? value : \"\";\n        }\n        break;\n      case \"select\":\n        if (value === \"\" || value === null) {\n          value = void 0;\n        }\n        var selection = -1;\n        for (let i = 0, n = element.options.length, optionValue; i < n; ++i) {\n          optionValue = selectExtensions.readValue(element.options[i]);\n          const strictEqual = optionValue === value;\n          const blankEqual = optionValue === \"\" && value === void 0;\n          const numericEqual = typeof value === \"number\" && Number(optionValue) === value;\n          if (strictEqual || blankEqual || numericEqual) {\n            selection = i;\n            break;\n          }\n        }\n        if (allowUnset || selection >= 0 || value === void 0 && element.size > 1) {\n          element.selectedIndex = selection;\n        }\n        break;\n      default:\n        if (value === null || value === void 0) {\n          value = \"\";\n        }\n        element.value = value;\n        break;\n    }\n  }\n};\n", "// @tko/utils \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport options from \"./options\";\nimport { deferError } from \"./error\";\nvar taskQueue = [], taskQueueLength = 0, nextHandle = 1, nextIndexToProcess = 0, w = options.global;\nif (w && w.MutationObserver && !(w.navigator && w.navigator.standalone)) {\n  options.taskScheduler = function(callback) {\n    var div = w.document.createElement(\"div\");\n    new w.MutationObserver(callback).observe(div, { attributes: true });\n    return function() {\n      div.classList.toggle(\"foo\");\n    };\n  }(scheduledProcess);\n} else if (w && w.document && \"onreadystatechange\" in w.document.createElement(\"script\")) {\n  options.taskScheduler = function(callback) {\n    var script = document.createElement(\"script\");\n    script.onreadystatechange = function() {\n      script.onreadystatechange = null;\n      document.documentElement.removeChild(script);\n      script = null;\n      callback();\n    };\n    document.documentElement.appendChild(script);\n  };\n} else {\n  options.taskScheduler = function(callback) {\n    setTimeout(callback, 0);\n  };\n}\nfunction processTasks() {\n  if (taskQueueLength) {\n    var mark = taskQueueLength, countMarks = 0;\n    for (var task; nextIndexToProcess < taskQueueLength; ) {\n      if (task = taskQueue[nextIndexToProcess++]) {\n        if (nextIndexToProcess > mark) {\n          if (++countMarks >= 5e3) {\n            nextIndexToProcess = taskQueueLength;\n            deferError(Error(\"'Too much recursion' after processing \" + countMarks + \" task groups.\"));\n            break;\n          }\n          mark = taskQueueLength;\n        }\n        try {\n          task();\n        } catch (ex) {\n          deferError(ex);\n        }\n      }\n    }\n  }\n}\nfunction scheduledProcess() {\n  processTasks();\n  nextIndexToProcess = taskQueueLength = taskQueue.length = 0;\n}\nfunction scheduleTaskProcessing() {\n  options.taskScheduler(scheduledProcess);\n}\nexport function schedule(func) {\n  if (!taskQueueLength) {\n    scheduleTaskProcessing();\n  }\n  taskQueue[taskQueueLength++] = func;\n  return nextHandle++;\n}\nexport function cancel(handle) {\n  var index = handle - (nextHandle - taskQueueLength);\n  if (index >= nextIndexToProcess && index < taskQueueLength) {\n    taskQueue[index] = null;\n  }\n}\nexport function resetForTesting() {\n  var length = taskQueueLength - nextIndexToProcess;\n  nextIndexToProcess = taskQueueLength = taskQueue.length = 0;\n  return length;\n}\nexport { processTasks as runEarly };\n", "// @tko/observable \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { isSubscribable } from \"./subscribableSymbol\";\nconst outerFrames = [];\nlet currentFrame;\nlet lastId = 0;\nfunction getId() {\n  return ++lastId;\n}\nexport function begin(options) {\n  outerFrames.push(currentFrame);\n  currentFrame = options;\n}\nexport function end() {\n  currentFrame = outerFrames.pop();\n}\nexport function registerDependency(subscribable) {\n  if (currentFrame) {\n    if (!isSubscribable(subscribable)) {\n      throw new Error(\"Only subscribable things can act as dependencies\");\n    }\n    currentFrame.callback.call(currentFrame.callbackTarget, subscribable, subscribable._id || (subscribable._id = getId()));\n  }\n}\nexport function ignore(callback, callbackTarget, callbackArgs) {\n  try {\n    begin();\n    return callback.apply(callbackTarget, callbackArgs || []);\n  } finally {\n    end();\n  }\n}\nexport function getDependenciesCount() {\n  if (currentFrame) {\n    return currentFrame.computed.getDependenciesCount();\n  }\n}\nexport function getDependencies() {\n  if (currentFrame) {\n    return currentFrame.computed.getDependencies();\n  }\n}\nexport function isInitial() {\n  if (currentFrame) {\n    return currentFrame.isInitial;\n  }\n}\nexport { ignore as ignoreDependencies };\n", "// @tko/observable \uD83E\uDD4A 4.0.0-beta1.3 ESM\nexport const SUBSCRIBABLE_SYM = Symbol(\"Knockout Subscribable\");\nexport function isSubscribable(instance) {\n  return instance && instance[SUBSCRIBABLE_SYM] || false;\n}\n", "// @tko/observable \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport { tasks } from \"@tko/utils\";\nexport function deferUpdates(target) {\n  if (target._deferUpdates) {\n    return;\n  }\n  target._deferUpdates = true;\n  target.limit(function(callback) {\n    let handle;\n    let ignoreUpdates = false;\n    return function() {\n      if (!ignoreUpdates) {\n        tasks.cancel(handle);\n        handle = tasks.schedule(callback);\n        try {\n          ignoreUpdates = true;\n          target.notifySubscribers(void 0, \"dirty\");\n        } finally {\n          ignoreUpdates = false;\n        }\n      }\n    };\n  });\n}\n", "// @tko/observable \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport {\n  removeDisposeCallback,\n  addDisposeCallback\n} from \"@tko/utils\";\nexport default class Subscription {\n  constructor(target, observer, disposeCallback) {\n    this._target = target;\n    this._callback = observer.next;\n    this._disposeCallback = disposeCallback;\n    this._isDisposed = false;\n    this._domNodeDisposalCallback = null;\n  }\n  dispose() {\n    if (this._domNodeDisposalCallback) {\n      removeDisposeCallback(this._node, this._domNodeDisposalCallback);\n    }\n    this._isDisposed = true;\n    this._disposeCallback();\n  }\n  disposeWhenNodeIsRemoved(node) {\n    this._node = node;\n    addDisposeCallback(node, this._domNodeDisposalCallback = this.dispose.bind(this));\n  }\n  unsubscribe() {\n    this.dispose();\n  }\n  get closed() {\n    return this._isDisposed;\n  }\n}\n", "// @tko/observable \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport {\n  options,\n  objectForEach,\n  throttle as throttleFn,\n  debounce as debounceFn\n} from \"@tko/utils\";\nimport { deferUpdates } from \"./defer\";\nvar primitiveTypes = {\n  \"undefined\": 1,\n  \"boolean\": 1,\n  \"number\": 1,\n  \"string\": 1\n};\nexport function valuesArePrimitiveAndEqual(a, b) {\n  var oldValueIsPrimitive = a === null || typeof a in primitiveTypes;\n  return oldValueIsPrimitive ? a === b : false;\n}\nexport function applyExtenders(requestedExtenders) {\n  var target = this;\n  if (requestedExtenders) {\n    objectForEach(requestedExtenders, function(key, value) {\n      var extenderHandler = extenders[key];\n      if (typeof extenderHandler === \"function\") {\n        target = extenderHandler(target, value) || target;\n      } else {\n        options.onError(new Error(\"Extender not found: \" + key));\n      }\n    });\n  }\n  return target;\n}\nexport function notify(target, notifyWhen) {\n  target.equalityComparer = notifyWhen == \"always\" ? null : valuesArePrimitiveAndEqual;\n}\nexport function deferred(target, option) {\n  if (option !== true) {\n    throw new Error(\"The 'deferred' extender only accepts the value 'true', because it is not supported to turn deferral off once enabled.\");\n  }\n  deferUpdates(target);\n}\nexport function rateLimit(target, options2) {\n  var timeout, method, limitFunction;\n  if (typeof options2 === \"number\") {\n    timeout = options2;\n  } else {\n    timeout = options2.timeout;\n    method = options2.method;\n  }\n  target._deferUpdates = false;\n  limitFunction = method === \"notifyWhenChangesStop\" ? debounceFn : throttleFn;\n  target.limit(function(callback) {\n    return limitFunction(callback, timeout);\n  });\n}\nexport var extenders = {\n  notify,\n  deferred,\n  rateLimit\n};\n", "// @tko/observable \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport {\n  arrayRemoveItem,\n  objectForEach,\n  options\n} from \"@tko/utils\";\nimport Subscription from \"./Subscription\";\nimport { SUBSCRIBABLE_SYM } from \"./subscribableSymbol\";\nimport { applyExtenders } from \"./extenders\";\nimport * as dependencyDetection from \"./dependencyDetection\";\nexport { isSubscribable } from \"./subscribableSymbol\";\nexport const LATEST_VALUE = Symbol(\"Knockout latest value\");\nif (!Symbol.observable) {\n  Symbol.observable = Symbol.for(\"@tko/Symbol.observable\");\n}\nexport function subscribable() {\n  Object.setPrototypeOf(this, ko_subscribable_fn);\n  ko_subscribable_fn.init(this);\n}\nexport var defaultEvent = \"change\";\nvar ko_subscribable_fn = {\n  [SUBSCRIBABLE_SYM]: true,\n  [Symbol.observable]() {\n    return this;\n  },\n  init(instance) {\n    instance._subscriptions = { change: [] };\n    instance._versionNumber = 1;\n  },\n  subscribe(callback, callbackTarget, event) {\n    const isTC39Callback = typeof callback === \"object\" && callback.next;\n    event = event || defaultEvent;\n    const observer = isTC39Callback ? callback : {\n      next: callbackTarget ? callback.bind(callbackTarget) : callback\n    };\n    const subscriptionInstance = new Subscription(this, observer, () => {\n      arrayRemoveItem(this._subscriptions[event], subscriptionInstance);\n      if (this.afterSubscriptionRemove) {\n        this.afterSubscriptionRemove(event);\n      }\n    });\n    if (this.beforeSubscriptionAdd) {\n      this.beforeSubscriptionAdd(event);\n    }\n    if (!this._subscriptions[event]) {\n      this._subscriptions[event] = [];\n    }\n    this._subscriptions[event].push(subscriptionInstance);\n    if (isTC39Callback && LATEST_VALUE in this) {\n      observer.next(this[LATEST_VALUE]);\n    }\n    return subscriptionInstance;\n  },\n  notifySubscribers(valueToNotify, event) {\n    event = event || defaultEvent;\n    if (event === defaultEvent) {\n      this.updateVersion();\n    }\n    if (this.hasSubscriptionsForEvent(event)) {\n      const subs = event === defaultEvent && this._changeSubscriptions || [...this._subscriptions[event]];\n      try {\n        dependencyDetection.begin();\n        for (let i = 0, subscriptionInstance; subscriptionInstance = subs[i]; ++i) {\n          if (!subscriptionInstance._isDisposed) {\n            subscriptionInstance._callback(valueToNotify);\n          }\n        }\n      } finally {\n        dependencyDetection.end();\n      }\n    }\n  },\n  getVersion() {\n    return this._versionNumber;\n  },\n  hasChanged(versionToCheck) {\n    return this.getVersion() !== versionToCheck;\n  },\n  updateVersion() {\n    ++this._versionNumber;\n  },\n  hasSubscriptionsForEvent(event) {\n    return this._subscriptions[event] && this._subscriptions[event].length;\n  },\n  getSubscriptionsCount(event) {\n    if (event) {\n      return this._subscriptions[event] && this._subscriptions[event].length || 0;\n    } else {\n      var total = 0;\n      objectForEach(this._subscriptions, function(eventName, subscriptions) {\n        if (eventName !== \"dirty\") {\n          total += subscriptions.length;\n        }\n      });\n      return total;\n    }\n  },\n  isDifferent(oldValue, newValue) {\n    return !this.equalityComparer || !this.equalityComparer(oldValue, newValue);\n  },\n  once(cb) {\n    const subs = this.subscribe((nv) => {\n      subs.dispose();\n      cb(nv);\n    });\n  },\n  when(test, returnValue) {\n    const current = this.peek();\n    const givenRv = arguments.length > 1;\n    const testFn = typeof test === \"function\" ? test : (v) => v === test;\n    if (testFn(current)) {\n      return options.Promise.resolve(givenRv ? returnValue : current);\n    }\n    return new options.Promise((resolve, reject) => {\n      const subs = this.subscribe((newValue) => {\n        if (testFn(newValue)) {\n          subs.dispose();\n          resolve(givenRv ? returnValue : newValue);\n        }\n      });\n    });\n  },\n  yet(test, ...args) {\n    const testFn = typeof test === \"function\" ? test : (v) => v === test;\n    const negated = (v) => !testFn(v);\n    return this.when(negated, ...args);\n  },\n  next() {\n    return new Promise((resolve) => this.once(resolve));\n  },\n  toString() {\n    return \"[object Object]\";\n  },\n  extend: applyExtenders\n};\nObject.setPrototypeOf(ko_subscribable_fn, Function.prototype);\nsubscribable.fn = ko_subscribable_fn;\n", "// @tko/observable \uD83E\uDD4A 4.0.0-beta1.3 ESM\nimport {\n  options,\n  overwriteLengthPropertyIfSupported\n} from \"@tko/utils\";\nimport * as dependencyDetection from \"./dependencyDetection\";\nimport { deferUpdates } from \"./defer\";\nimport { subscribable, defaultEvent, LATEST_VALUE } from \"./subscribable\";\nimport { valuesArePrimitiveAndEqual } from \"./extenders\";\nexport function observable(initialValue) {\n  function Observable() {\n    if (arguments.length > 0) {\n      if (Observable.isDifferent(Observable[LATEST_VALUE], arguments[0])) {\n        Observable.valueWillMutate();\n        Observable[LATEST_VALUE] = arguments[0];\n        Observable.valueHasMutated();\n      }\n      return this;\n    } else {\n      dependencyDetection.registerDependency(Observable);\n      re