JavaScript - JSON Part 2: Parsing JSON (Convert JSON to JavaScript Object)

What is JSON Parsing?

Parsing JSON means converting a JSON string into a JavaScript object using JSON.parse(). This allows us to manipulate JSON data easily.

Example 2: Parsing a JSON String

const jsonString = '{"name": "Emma", "age": 22, "city": "London"}';

const user = JSON.parse(jsonString);

console.log(user.name); // Output: Emma

Explanation:

The JSON.parse() function converts a JSON string into a JavaScript object.

Once converted, we can access properties like user. name.

Handling Errors in Parsing

If the JSON is malformed, parsing fails:

try {

    JSON.parse("{ name: 'Emma' }"); // Incorrect JSON (missing double quotes)

} catch (error) {

    console.log("Invalid JSON format!");

}

This prevents the script from crashing due to invalid JSON data.