34 lines
1.3 KiB
JavaScript
34 lines
1.3 KiB
JavaScript
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import { isEqualsSameValueZero } from "../../_internal/isEqualsSameValueZero.mjs";
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import "../util/eq.mjs";
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import { keys } from "./keys.mjs";
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//#region src/compat/object/assign.ts
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/**
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* Assigns properties from multiple source objects to a target object.
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*
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* This function merges the properties of the source objects into the target object.
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* If a property in the source objects is equal to the corresponding property in the target object,
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* it will not be overwritten.
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*
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* @param {any} object - The target object to which properties will be assigned.
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* @param {...any[]} sources - The source objects whose properties will be assigned to the target object.
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* @returns {any} The updated target object with properties from the source objects assigned.
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*
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* @example
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* const target = { a: 1 };
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* const result = assign(target, { b: 2 }, { c: 3 });
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* console.log(result); // Output: { a: 1, b: 2, c: 3 }
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*/
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function assign(object, ...sources) {
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for (let i = 0; i < sources.length; i++) assignImpl(object, sources[i]);
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return object;
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}
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function assignImpl(object, source) {
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const keys$1 = keys(source);
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for (let i = 0; i < keys$1.length; i++) {
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const key = keys$1[i];
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if (!(key in object) || !isEqualsSameValueZero(object[key], source[key])) object[key] = source[key];
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}
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}
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//#endregion
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export { assign };
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