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Home/ Questions/How to validate json in javascript?
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Mina O'Kelly
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Mina O'Kelly
Asked: April 18, 20222022-04-18T02:43:00+00:00 2022-04-18T02:43:00+00:00In: javascript

How to validate json in javascript?

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I am trying to validate json in javascript but I’ve not found a solution for it yet. Can someone share with me your experience?

♦ Suggestions of ITtutoria Team
Idea for “validate json in javascript”: try-catch handles the unexpected errors that could crop up in a given string of JSON data without causing your program to crash. It can handle missing parameters, faulty syntax, and wrong splitter arguments.

Here is our case study:

function IsJsonString(str) {
  try {
    JSON.parse(str);
  } catch (e) {
    return false;
  }
  return true;
}
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  1. Ali Davis
    2022-05-24T21:16:40+00:00Added an answer on May 24, 2022 at 9:16 pm

    This way to validate json in javascript

    function isValidJSONString(str) {
      try {
        JSON.parse(str);
      } catch (e) {
        return false;
      }
      return true;
    
    var personJSONString = '{"first_name":"Tony","last_name":"Hawk","age":31}';
    if (isValidJSONString(personJSONString)) {
      //cool we are valid, lets parse
      var person = JSON.parse(personJSONString);
    }
    ​
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