source: trip-planner-front/node_modules/lodash/concat.js@ e29cc2e

Last change on this file since e29cc2e was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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1var arrayPush = require('./_arrayPush'),
2 baseFlatten = require('./_baseFlatten'),
3 copyArray = require('./_copyArray'),
4 isArray = require('./isArray');
5
6/**
7 * Creates a new array concatenating `array` with any additional arrays
8 * and/or values.
9 *
10 * @static
11 * @memberOf _
12 * @since 4.0.0
13 * @category Array
14 * @param {Array} array The array to concatenate.
15 * @param {...*} [values] The values to concatenate.
16 * @returns {Array} Returns the new concatenated array.
17 * @example
18 *
19 * var array = [1];
20 * var other = _.concat(array, 2, [3], [[4]]);
21 *
22 * console.log(other);
23 * // => [1, 2, 3, [4]]
24 *
25 * console.log(array);
26 * // => [1]
27 */
28function concat() {
29 var length = arguments.length;
30 if (!length) {
31 return [];
32 }
33 var args = Array(length - 1),
34 array = arguments[0],
35 index = length;
36
37 while (index--) {
38 args[index - 1] = arguments[index];
39 }
40 return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
41}
42
43module.exports = concat;
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