ts-japi/lib/utils/merge.js

A highly-modular (typescript-friendly)-framework agnostic library for serializing data to the JSON:API specification

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const is_plain_object_1 = require("./is-plain-object");
/**
 * Deep merge two objects over their enumerable properties.
 *
 * @param target - The object to merge into
 * @param source - The objects to use for merging
 */
function merge(target, ...sources) {
    if (!sources.length)
        return target;
    const source = sources.shift();
    if ((0, is_plain_object_1.isPlainObject)(target) && (0, is_plain_object_1.isPlainObject)(source)) {
        for (const key of Object.keys(source)) {
            const sourceItem = source[key];
            if ((0, is_plain_object_1.isPlainObject)(sourceItem)) {
                if (!target[key])
                    Object.assign(target, { [key]: {} });
                merge(target[key], sourceItem);
            }
            else {
                Object.assign(target, { [key]: source[key] });
            }
        }
    }
    return merge(target, ...sources);
}
exports.default = merge;
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