stringify.js•1.04 kB
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));
}