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Mina O'Kelly
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Asked: 2022-04-18T02:43:00+00:00 In:

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 Answer

  1. 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);
}
​
    • 22

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