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							- 'use strict';
 
- const internals = {};
 
- module.exports = internals.flatten = function (array, target) {
 
-     const result = target || [];
 
-     for (let i = 0; i < array.length; ++i) {
 
-         if (Array.isArray(array[i])) {
 
-             internals.flatten(array[i], result);
 
-         }
 
-         else {
 
-             result.push(array[i]);
 
-         }
 
-     }
 
-     return result;
 
- };
 
 
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