用过滤器字符串化

Created: November-22, 2018

var JSONObject = {
   stringProp: 'stringProp',
   booleanProp: false,
   intProp: 8
}

var JSONString = JSON.stringify(JSONObject, ['intProp']);
console.log(JSONString);
/* output 
 * {"intProp":8} 
 */