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/*!
* arr-flatten <https://github.com/jonschlinkert/arr-flatten>
*
* Copyright (c) 2014-2015, 2017, Jon Schlinkert.
* Released under the MIT License.
*/
'use strict';
module.exports = function flatten(arr) {
return flat(arr, []);
};
function flat(arr, acc) {
var len = arr.length;
var idx = -1;
while (++idx < len) {
var cur = arr[idx];
if (Array.isArray(cur)) {
flat(cur, acc);
} else {
acc.push(cur);
}
}
return acc;
}
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