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36 lines
1.0 KiB
36 lines
1.0 KiB
var assert = require('assert'); |
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var Traverse = require('traverse'); |
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exports.stringify = function () { |
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var obj = [ 5, 6, -3, [ 7, 8, -2, 1 ], { f : 10, g : -13 } ]; |
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var s = ''; |
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Traverse(obj).forEach(function (node) { |
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if (Array.isArray(node)) { |
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this.before(function () { s += '[' }); |
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this.post(function (child) { |
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if (!child.isLast) s += ','; |
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}); |
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this.after(function () { s += ']' }); |
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} |
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else if (typeof node == 'object') { |
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this.before(function () { s += '{' }); |
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this.pre(function (x, key) { |
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s += '"' + key + '"' + ':'; |
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}); |
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this.post(function (child) { |
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if (!child.isLast) s += ','; |
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}); |
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this.after(function () { s += '}' }); |
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} |
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else if (typeof node == 'function') { |
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s += 'null'; |
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} |
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else { |
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s += node.toString(); |
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} |
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}); |
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assert.equal(s, JSON.stringify(obj)); |
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} |
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