@gvray/eskit/lib/copyProperties.js

A rich and colorful toolkit about typescript and javascript.

"use strict";
var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Copies all properties from source to target, including non-enumerable ones.
 * 将所有属性从源对象复制到目标对象，包括不可枚举的属性。
 *
 * @param target - The target object to copy properties to / 要复制属性到的目标对象
 * @param source - The source object to copy properties from / 要从中复制属性的源对象
 *
 * @example
 * ```typescript
 * const source = { a: 1, b: 2 }
 * const target = { c: 3 }
 *
 * copyProperties(target, source)
 * console.log(target) // { c: 3, a: 1, b: 2 }
 *
 * // Copies non-enumerable properties too
 * const sourceWithHidden = {}
 * Object.defineProperty(sourceWithHidden, 'hidden', {
 *   value: 'secret',
 *   enumerable: false,
 *   writable: true,
 *   configurable: true
 * })
 *
 * const targetForHidden = {}
 * copyProperties(targetForHidden, sourceWithHidden)
 * console.log(Object.getOwnPropertyDescriptor(targetForHidden, 'hidden'))
 * // { value: 'secret', writable: true, enumerable: false, configurable: true }
 *
 * // Copies getters and setters
 * const sourceWithAccessor = {
 *   _value: 42,
 *   get value() { return this._value },
 *   set value(v) { this._value = v }
 * }
 *
 * const targetForAccessor = {}
 * copyProperties(targetForAccessor, sourceWithAccessor)
 * console.log((targetForAccessor as any).value) // 42
 * ```
 *
 * @since 1.0.0
 */
var copyProperties = function (target, source) {
    var e_1, _a;
    try {
        for (var _b = __values(Reflect.ownKeys(source)), _c = _b.next(); !_c.done; _c = _b.next()) {
            var key = _c.value;
            if (key !== 'constructor' && key !== 'prototype' && key !== 'name') {
                var desc = Object.getOwnPropertyDescriptor(source, key);
                Object.defineProperty(target, key, desc !== null && desc !== void 0 ? desc : {});
            }
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
        }
        finally { if (e_1) throw e_1.error; }
    }
};
exports.default = copyProperties;
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