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How do I convert a JavaScript object into JSON?

Asked on Aug 14, 2025

Answer

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To convert a JavaScript object into JSON, you can use the "JSON.stringify()" method. This method transforms a JavaScript object into a JSON string.

<!-- BEGIN COPY / PASTE -->
        const obj = { name: "John", age: 30, city: "New York" };
        const jsonString = JSON.stringify(obj);
        console.log(jsonString); // Output: {"name":"John","age":30,"city":"New York"}
        <!-- END COPY / PASTE -->

Additional Comment:

"JSON.stringify()" is used to convert a JavaScript object to a JSON string.
The output is a string that represents the object in JSON format.
This method is useful for sending data to a server or storing it in local storage.

✅ Answered with JavaScript best practices.

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