@tldraw/utils/dist-esm/lib/object.mjs.map

tldraw infinite canvas SDK (private utilities).

{
  "version": 3,
  "sources": ["../../src/lib/object.ts"],
  "sourcesContent": ["import isEqualWith from 'lodash.isequalwith'\n\n/** @internal */\nexport function hasOwnProperty(obj: object, key: string): boolean {\n\treturn Object.prototype.hasOwnProperty.call(obj, key)\n}\n\n/** @internal */\nexport function getOwnProperty<K extends string, V>(\n\tobj: Partial<Record<K, V>>,\n\tkey: K\n): V | undefined\n/** @internal */\nexport function getOwnProperty<O extends object>(obj: O, key: string): O[keyof O] | undefined\n/** @internal */\nexport function getOwnProperty(obj: object, key: string): unknown\n/** @internal */\nexport function getOwnProperty(obj: object, key: string): unknown {\n\tif (!hasOwnProperty(obj, key)) {\n\t\treturn undefined\n\t}\n\t// @ts-expect-error we know the property exists\n\treturn obj[key]\n}\n\n/**\n * An alias for `Object.keys` that treats the object as a map and so preserves the type of the keys.\n *\n * @internal\n */\nexport function objectMapKeys<Key extends string>(object: {\n\treadonly [K in Key]: unknown\n}): Array<Key> {\n\treturn Object.keys(object) as Key[]\n}\n\n/**\n * An alias for `Object.values` that treats the object as a map and so preserves the type of the\n * keys.\n *\n * @internal\n */\nexport function objectMapValues<Key extends string, Value>(object: {\n\t[K in Key]: Value\n}): Array<Value> {\n\treturn Object.values(object) as Value[]\n}\n\n/**\n * An alias for `Object.entries` that treats the object as a map and so preserves the type of the\n * keys.\n *\n * @internal\n */\nexport function objectMapEntries<Key extends string, Value>(object: {\n\t[K in Key]: Value\n}): Array<[Key, Value]> {\n\treturn Object.entries(object) as [Key, Value][]\n}\n\n/**\n * An alias for `Object.fromEntries` that treats the object as a map and so preserves the type of the\n * keys.\n *\n * @internal\n */\nexport function objectMapFromEntries<Key extends string, Value>(\n\tentries: ReadonlyArray<readonly [Key, Value]>\n): { [K in Key]: Value } {\n\treturn Object.fromEntries(entries) as { [K in Key]: Value }\n}\n\n/**\n * Filters an object using a predicate function.\n * @returns a new object with only the entries that pass the predicate\n * @internal\n */\nexport function filterEntries<Key extends string, Value>(\n\tobject: { [K in Key]: Value },\n\tpredicate: (key: Key, value: Value) => boolean\n): { [K in Key]: Value } {\n\tconst result: { [K in Key]?: Value } = {}\n\tlet didChange = false\n\tfor (const [key, value] of objectMapEntries(object)) {\n\t\tif (predicate(key, value)) {\n\t\t\tresult[key] = value\n\t\t} else {\n\t\t\tdidChange = true\n\t\t}\n\t}\n\treturn didChange ? (result as { [K in Key]: Value }) : object\n}\n\n/**\n * Maps the values of one object map to another.\n * @returns a new object with the entries mapped\n * @internal\n */\nexport function mapObjectMapValues<Key extends string, ValueBefore, ValueAfter>(\n\tobject: { readonly [K in Key]: ValueBefore },\n\tmapper: (key: Key, value: ValueBefore) => ValueAfter\n): { [K in Key]: ValueAfter } {\n\tconst result = {} as { [K in Key]: ValueAfter }\n\tfor (const [key, value] of objectMapEntries(object)) {\n\t\tconst newValue = mapper(key, value)\n\t\tresult[key] = newValue\n\t}\n\treturn result\n}\n\n/** @internal */\nexport function areObjectsShallowEqual<T extends object>(obj1: T, obj2: T): boolean {\n\tif (obj1 === obj2) return true\n\tconst keys1 = new Set(Object.keys(obj1))\n\tconst keys2 = new Set(Object.keys(obj2))\n\tif (keys1.size !== keys2.size) return false\n\tfor (const key of keys1) {\n\t\tif (!keys2.has(key)) return false\n\t\tif (!Object.is((obj1 as any)[key], (obj2 as any)[key])) return false\n\t}\n\treturn true\n}\n\n/** @internal */\nexport function groupBy<K extends string, V>(\n\tarray: ReadonlyArray<V>,\n\tkeySelector: (value: V) => K\n): Record<K, V[]> {\n\tconst result: Record<K, V[]> = {} as any\n\tfor (const value of array) {\n\t\tconst key = keySelector(value)\n\t\tif (!result[key]) result[key] = []\n\t\tresult[key].push(value)\n\t}\n\treturn result\n}\n\n/** @internal */\nexport function omit(\n\tobj: Record<string, unknown>,\n\tkeys: ReadonlyArray<string>\n): Record<string, unknown> {\n\tconst result = { ...obj }\n\tfor (const key of keys) {\n\t\tdelete result[key]\n\t}\n\treturn result\n}\n\n/** @internal */\nexport function getChangedKeys<T extends object>(obj1: T, obj2: T): (keyof T)[] {\n\tconst result: (keyof T)[] = []\n\tfor (const key in obj1) {\n\t\tif (!Object.is(obj1[key], obj2[key])) {\n\t\t\tresult.push(key)\n\t\t}\n\t}\n\treturn result\n}\n\n/** @internal */\nexport function isEqualAllowingForFloatingPointErrors(\n\tobj1: object,\n\tobj2: object,\n\tthreshold = 0.000001\n): boolean {\n\treturn isEqualWith(obj1, obj2, (value1, value2) => {\n\t\tif (typeof value1 === 'number' && typeof value2 === 'number') {\n\t\t\treturn Math.abs(value1 - value2) < threshold\n\t\t}\n\t\treturn undefined\n\t})\n}\n"],
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