Why when sending data over AJAX, do you have to JSON.stringify() your objects?

when sending json via ajax do you need to turn it into a string to send it?

If it isn't a string, then it isn't JSON in the first place.

JSON is a text based data format. HTTP is a text based communications protocol.

JSON stands for javascript object notation

JSON is based on the syntax for JavaScript literals. A JavaScript object is not JSON.

AJAX is all about HTTP requests, which are basically "text" requests to a server. That's the main reason why you have to stringify your object: That way it's turned into text that can "travel" over HTTP.

When sending data to a web server, the data has to be a string.

That's why we are using JSON.stringify() function to convert data to string and send it via XHR request to the server.

        // Creating a XHR object         let xhr = new XMLHttpRequest();        let url = "submit.php";         // open a connection         xhr.open("POST", url, true);         // Set the request header i.e. which type of content you are sending         xhr.setRequestHeader("Content-Type", "application/json");         // Converting JSON data to string         var data = JSON.stringify({ "name": name.value, "email": email.value });         // Sending data with the request         xhr.send(data);