The difference between json.parse () and eval () parsing JSON in JavaScript

varjsonData=‘{"data1":"Hello,","data2":"world!"}‘

Call Method Jsondata.data1,jsondata.data2

jsonData=[ {"name":"LiLei","age":19,"sex":"male"}, {"name":"HanMei","age":18,"sex" :"famale"}]

Call Method Jsondata[0].name,jsondata[1].sex

evalJson=eval(‘(‘+jsonData+‘)‘);

varjsonParseJson=JSON.parse(jsonData);

Using the Eval function to parse JSON is a very insecure way to use it without the best possible reason that eval not only resolves the JSON string, but also executes the block of code in it (if any).

So what we used to do is use the Json.parse () method to parse
var obj = json.parse (jsondata);

The difference between json.parse () and eval () parsing JSON in JavaScript