@orca-fe/tools/es/obj.js

front-end tools

function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
/* eslint-disable @typescript-eslint/ban-types,@typescript-eslint/no-explicit-any */

export function objMap(obj, callback = (k, v) => v) {
  var result = {};
  var changed = false;
  Object.entries(obj).forEach(([key, value]) => {
    var r = callback(key, value);
    if (r !== value) {
      changed = true;
      result[key] = r;
    } else {
      result[key] = value;
    }
  });
  return changed ? result : obj;
}

/**
 * 对象内容过滤器
 * @param obj 对象本身
 * @param callback 过滤器回调
 */
export function objFilter(obj, callback) {
  var result = {};
  Object.entries(obj).forEach(([key, value]) => {
    var r = callback(key, value);
    if (r) {
      result[key] = value;
    }
  });
  return result;
}
export function objOmitUndefined(obj, omitNull = true) {
  return objFilter(obj, (key, value) => {
    if (omitNull && value === null) return false;
    return value !== undefined;
  });
}
export function omit(obj, ...args) {
  var result = _objectSpread({}, obj);
  args.forEach(key => {
    // eslint-disable-next-line @typescript-eslint/no-dynamic-delete
    delete result[key];
  });
  return result;
}

/**
 * 将对象中的 null 转换为 undefined
 * @param value
 */
export function convertNullToUndefined(value) {
  var cache = new WeakMap();
  function convert(value) {
    if (value === null) return undefined;
    // array
    if (Array.isArray(value)) {
      if (!cache.has(value)) {
        var newArray = [];
        cache.set(value, newArray);
        value.forEach(v => {
          newArray.push(convert(v));
        });
      }
      return cache.get(value);
    }
    if (typeof value === 'object' && value.constructor.name === 'Object') {
      if (!cache.has(value)) {
        var newObj = {};
        cache.set(value, newObj);
        Object.assign(newObj, objMap(value, (_, v) => convertNullToUndefined(v)));
      }
      return cache.get(value);
    }
    return value;
  }
  return convert(value);
}