Adding attributes to JSON objects and adding elements to a JSON array in JS

Add a new property to the JSON object in JS

For example, there is now a JSON object for jsonobj, you need to add a new attribute Newparam to the object, and assign the Newparam to the pre. The procedure is as follows:

var obj={   "name": "WQC",    "age": "Number    ":        }obj.class=201;

After the new property is added, the JSON object becomes:

var jsonobj={      "name": "WQC",
  "Age": 22,
    "number": 22  
       "Class": 201

};

Adding elements to a JSON array

The JSON array is also an array of//1, var jsonstr= "[{' Name ': ' A ', ' value ': ' 1},{' name ': ' B ', ' Value ': 2}] ', var jsonarray = eval (' (' +jsonstr+ ') '); var arr  =     {         "name": $ (' #names '). Val (),         "value": $ (' #values '). Val ()     

　　

Adding attributes to JSON objects and adding elements to a JSON array in JS