js json try parse code example
Example 1: if json valide js
function IsJsonString(str) {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
}
Example 2: javascript is valid json string
function isValidJSONString(str) {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
}
//usage
var personJSONString = '{"first_name":"Tony","last_name":"Hawk","age":31}';
if(isValidJSONString(personJSONString)){
//cool we are valid, lets parse
var person= JSON.parse(personJSONString);
}
Example 3: javascript parse json
var jsonPerson = '{"first_name":"billy", "age":23}';
var personObject = JSON.parse(jsonPerson); //parse json string into JS object
Example 4: js parse json
const json = '{"result":true, "count":42}';
const obj = JSON.parse(json);
console.log(obj.count);
// expected output: 42
console.log(obj.result);
// expected output: true