@hemjs/gather/dist/utils.js

A lightweight library for collecting and merging configuration from multiple sources

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.merge = merge;
const notions_1 = require("@hemjs/notions");
function merge(target, ...sources) {
    target = target || {};
    for (let i = 0; i < sources.length; i++) {
        const source = sources[i] || {};
        for (const key in source) {
            if (!(0, notions_1.isNil)(source[key])) {
                let obj = target[key];
                const value = source[key];
                if (Array.isArray(value)) {
                    obj = (0, notions_1.isNil)(obj) ? [] : obj;
                    target[key] = obj.concat(value);
                }
                else if ((0, notions_1.isObject)(obj) && (0, notions_1.isObject)(value)) {
                    target[key] = { ...obj, ...value };
                }
                else {
                    target[key] = value;
                }
            }
        }
    }
    return target;
}