source: trip-planner-front/node_modules/flatten/index.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 515 bytes
Line 
1module.exports = function flatten(list, depth) {
2 depth = (typeof depth == 'number') ? depth : Infinity;
3
4 if (!depth) {
5 if (Array.isArray(list)) {
6 return list.map(function(i) { return i; });
7 }
8 return list;
9 }
10
11 return _flatten(list, 1);
12
13 function _flatten(list, d) {
14 return list.reduce(function (acc, item) {
15 if (Array.isArray(item) && d < depth) {
16 return acc.concat(_flatten(item, d + 1));
17 }
18 else {
19 return acc.concat(item);
20 }
21 }, []);
22 }
23};
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