JSON与String互转（javascript）

JSON => String:
function jsonToString(obj){
var THIS = this;
switch(typeof(obj)){
case 'string':
return '"' + obj.replace(/(["\\])/g, '\\$1') + '"';
case 'array':
return '[' + obj.map(THIS.jsonToString).join(',') + ']';
case 'object':
if(obj instanceof Array){
var strArr = [];
var len = obj.length;
for(var i=0; i<len; i++){
strArr.push(THIS.jsonToString(obj[i]));
}
return '[' + strArr.join(',') + ']';
}else if(obj==null){
return 'null';

}else{
var string = [];
for (var property in obj) string.push(THIS.jsonToString(property) + ':' + THIS.jsonToString(obj[property]));
return '{' + string.join(',') + '}';
}
case 'number':
return obj;
case false:
return obj;
}
},
String => JSON
function stringToJSON(obj){
return eval('(' + obj + ')');
}
原帖地址：http://heweiya.javaeye.com/blog/442167