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37 lines
865 B
JavaScript
37 lines
865 B
JavaScript
6 years ago
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var traverse = require('../');
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var test = require('tape');
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test('subexpr', function (t) {
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var obj = [ 'a', 4, 'b', 5, 'c', 6 ];
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var r = traverse(obj).map(function (x) {
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if (typeof x === 'number') {
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this.update([ x - 0.1, x, x + 0.1 ], true);
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}
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});
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t.same(obj, [ 'a', 4, 'b', 5, 'c', 6 ]);
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t.same(r, [
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'a', [ 3.9, 4, 4.1 ],
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'b', [ 4.9, 5, 5.1 ],
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'c', [ 5.9, 6, 6.1 ],
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]);
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t.end();
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});
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test('block', function (t) {
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var obj = [ [ 1 ], [ 2 ], [ 3 ] ];
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var r = traverse(obj).map(function (x) {
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if (Array.isArray(x) && !this.isRoot) {
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if (x[0] === 5) this.block()
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else this.update([ [ x[0] + 1 ] ])
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}
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});
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t.same(r, [
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[ [ [ [ [ 5 ] ] ] ] ],
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[ [ [ [ 5 ] ] ] ],
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[ [ [ 5 ] ] ],
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]);
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t.end();
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});
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