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