使用空格进行字符串化

Created: November-22, 2018

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

var JSONString = JSON.stringify(JSONObject, null, 2);
console.log(JSONString);
/* output:
 *  {
 *    "stringProp": "stringProp",
 *    "booleanProp": false,
 *    "intProp": 8
 *   }
 */