@newdash/newdash/concat.js

javascript/typescript utility library

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.concat = void 0;
const baseFlatten_1 = __importDefault(require("./.internal/baseFlatten"));
const copyArray_1 = __importDefault(require("./.internal/copyArray"));
const arrayPush_1 = __importDefault(require("./.internal/arrayPush"));
const isArray_1 = __importDefault(require("./isArray"));
/**
 * Creates a new array concatenating `array` with any additional arrays
 * and/or values.
 *
 * @since 5.0.0
 * @category Array
 * @returns Returns the new concatenated array.
 * @example
 *
 * ```js
 * var array = [1];
 * var other = concat(array, 2, [3], [[4]]);
 *
 * console.log(other);
 * // => [1, 2, 3, [4]]
 *
 * console.log(array);
 * // => [1]
 * ```
 */
function concat(...arrays) {
    const length = arrays.length;
    if (!length) {
        return [];
    }
    const args = Array(length - 1);
    const array = arrays[0];
    let index = length;
    while (index--) {
        args[index - 1] = arrays[index];
    }
    return (0, arrayPush_1.default)((0, isArray_1.default)(array) ? (0, copyArray_1.default)(array) : [array], (0, baseFlatten_1.default)(args, 1));
}
exports.concat = concat;
exports.default = concat;