Examples of two common ways in which js reads json

Method 1: the most famous eval method in js

var strJson="{name:' Zhang SAN '}";//json

var obj=eval("("+strJson+")");//The converted json object 

alert(obj.name);//json name

One thing to note about this method is:

Object expression {'name':' zhang SAN '} must be expanded with '()', otherwise

var strJSON = "{name:' Zhang SAN '}";

var obj = eval(strJSON);

alert(obj.constructor);//String constructor 

alert(obj.name);//undefine

To generate an anonymous object, you must extend the object expression to an eval execution!

Method 2: function construction definition method returns

var strJSON = "{name:' Zhang SAN '}";//The resulting JSON

var obj = new Function("return" + strJSON)();//The converted JSON object 

alert(obj.name);//json name