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isValidJSON javascript Code Snippet in 2024

typeintermediate

Last Updated: 11 April 2024

Checks if the provided string is a valid JSON.

  • Use JSON.parse() and a try... catch block to check if the provided string is a valid JSON.
const isValidJSON = str => { try { JSON.parse(str); return true; } catch (e) { return false; } };
isValidJSON('{"name":"Adam","age":20}'); // true isValidJSON('{"name":"Adam",age:"20"}'); // false isValidJSON(null); // true

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