a simple function to do json.parse()
parser('{"a":1,"b":"b","c":true,"d":null,"e":[1,2],"f":{"a":1}}')
// => { a: 1, b: 'b', c: true, d: null, e: [ 1, 2 ], f: { a: 1 } }
parser('[1,2,[1,2],3]')
// => [ 1, 2, [ 1, 2 ], 3 ]
- support parsing escape char(\n) and Uniocode(\u6211)
- add more error dealings
- implent JSON.stringify()