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How can I safely parse a JSON string and handle errors if the format is incorrect?

Asked on Sep 30, 2025

Answer

To safely parse a JSON string in JavaScript and handle potential errors, you can use a try-catch block around the JSON.parse method. This ensures that if the JSON string is incorrectly formatted, the error is caught and handled gracefully.

<!-- BEGIN COPY / PASTE -->
        const jsonString = '{"name": "John", "age": 30}'; // Example JSON string

        try {
            const data = JSON.parse(jsonString);
            console.log("Parsed data:", data);
        } catch (error) {
            console.error("Error parsing JSON:", error.message);
        }
        <!-- END COPY / PASTE -->

Additional Comment:

The "try" block attempts to parse the JSON string using "JSON.parse".
If the JSON string is valid, the parsed object is logged to the console.
If the JSON string is invalid, the "catch" block catches the error and logs an error message.
This approach prevents your application from crashing due to unhandled exceptions.

✅ Answered with JavaScript best practices.

Ask any question about JavaScript here... and get an instant response.

How can I safely parse a JSON string and handle errors if the format is incorrect?

Asked on Sep 30, 2025

Answer

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