How do I use JSON.stringify in Node.js?

How do I use JSON.stringify in Node.js?

You can use JSON.stringify to convert a JavaScript object into a JSON string. Just pass the object as an argument.

Can you show me an example?

Sure! Here's a simple example:

const obj = { name: 'Alice', age: 25 };
const jsonString = JSON.stringify(obj);
console.log(jsonString); // Output: "{\"name\":\"Alice\",\"age\":25}"

What if I want to format the JSON string?

You can pass additional parameters to JSON.stringify for formatting. For example:

const jsonString = JSON.stringify(obj, null, 2);
console.log(jsonString);

This will pretty-print the JSON with 2 spaces of indentation.

Are there any limitations to JSON.stringify?

Yes, JSON.stringify cannot serialize functions, symbols, or undefined values. It also omits properties that hold these values.