flatten.js 349 B

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  1. 'use strict';
  2. const internals = {};
  3. module.exports = internals.flatten = function (array, target) {
  4. const result = target || [];
  5. for (const entry of array) {
  6. if (Array.isArray(entry)) {
  7. internals.flatten(entry, result);
  8. }
  9. else {
  10. result.push(entry);
  11. }
  12. }
  13. return result;
  14. };