42 lines
719 B
JavaScript
42 lines
719 B
JavaScript
'use strict';
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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) {
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this.block();
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} else {
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this.update([[x[0] + 1]]);
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}
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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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