1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
| 'use strict';
|
| var test = require('tape');
| var traverse = require('../');
|
| test('stop', function (t) {
| var visits = 0;
| traverse('abcdefghij'.split('')).forEach(function (node) {
| if (typeof node === 'string') {
| visits += 1;
| if (node === 'e') { this.stop(); }
| }
| });
|
| t.equal(visits, 5);
| t.end();
| });
|
| test('stopMap', function (t) {
| var s = traverse('abcdefghij'.split('')).map(function (node) {
| if (typeof node === 'string') {
| if (node === 'e') { this.stop(); }
| return node.toUpperCase();
| }
| return void undefined;
| }).join('');
|
| t.equal(s, 'ABCDEfghij');
| t.end();
| });
|
| test('stopReduce', function (t) {
| var obj = {
| a: [4, 5],
| b: [6, [7, 8, 9]],
| };
| var xs = traverse(obj).reduce(function (acc, node) {
| if (this.isLeaf) {
| if (node === 7) { this.stop(); } else { acc.push(node); }
| }
| return acc;
| }, []);
|
| t.same(xs, [4, 5, 6]);
| t.end();
| });
|
|
