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- import arrayPush from './_arrayPush.js';
- import baseFlatten from './_baseFlatten.js';
- import copyArray from './_copyArray.js';
- import isArray from './isArray.js';
- 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));
- }
- export default concat;
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