Spaces:
Runtime error
Runtime error
var arrayPush = require('./_arrayPush'), | |
baseFlatten = require('./_baseFlatten'), | |
copyArray = require('./_copyArray'), | |
isArray = require('./isArray'); | |
/** | |
* Creates a new array concatenating `array` with any additional arrays | |
* and/or values. | |
* | |
* @static | |
* @memberOf _ | |
* @since 4.0.0 | |
* @category Array | |
* @param {Array} array The array to concatenate. | |
* @param {...*} [values] The values to concatenate. | |
* @returns {Array} Returns the new concatenated array. | |
* @example | |
* | |
* var array = [1]; | |
* var other = _.concat(array, 2, [3], [[4]]); | |
* | |
* console.log(other); | |
* // => [1, 2, 3, [4]] | |
* | |
* console.log(array); | |
* // => [1] | |
*/ | |
function concat() { | |
var length = arguments.length; | |
if (!length) { | |
return []; | |
} | |
var args = Array(length - 1), | |
array = arguments[0], | |
index = length; | |
while (index--) { | |
args[index - 1] = arguments[index]; | |
} | |
return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); | |
} | |
module.exports = concat; | |