zents/lib/utils/set.js

ZenTS is a Node.js & TypeScript MVC-Framework for building rich web applications, released as free and open-source software under the MIT License. It is designed for building web applications with modern tools and design patterns.

"use strict";
/* eslint-disable @typescript-eslint/restrict-plus-operands */
/* eslint-disable no-bitwise */
/* eslint-disable @typescript-eslint/no-unsafe-return */
/* eslint-disable @typescript-eslint/no-unsafe-call */
/* eslint-disable @typescript-eslint/no-unsafe-member-access */
/* eslint-disable @typescript-eslint/no-unsafe-assignment */
Object.defineProperty(exports, "__esModule", { value: true });
exports.set = void 0;
// Source: https://stackoverflow.com/questions/54733539/javascript-implementation-of-lodash-set-method
function set(obj, path, value) {
    if (Object(obj) !== obj) {
        return obj;
    } // When obj is not an object
    // If not yet an array, get the keys from the string-path
    if (!Array.isArray(path)) {
        // @ts-ignore
        path = path.toString().match(/[^.[\]]+/g) || [];
    }
    // @ts-ignore
    path.slice(0, -1).reduce((
    // @ts-ignore
    a, 
    // @ts-ignore
    c, 
    // @ts-ignore
    i) => Object(a[c]) === a[c] // Does the key exist and is its value an object?
        ? // Yes: then follow that path
            a[c]
        : // No: create the key. Is the next key a potential array-index?
            (a[c] =
                // @ts-ignore
                Math.abs(path[i + 1]) >> 0 === +path[i + 1]
                    ? [] // Yes: assign a new array object
                    : {}), // No: assign a new plain object
    obj)[path[path.length - 1]] = value; // Finally assign the value to the last key
    return obj; // Return the top-level object to allow chaining
}
exports.set = set;
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