How do I send a POST request using JavaScript?

To send a POST request using vanilla JavaScript, you must use an XMLHttpRequest object to interact with the server and provide the correct Content-Type request header for the POST message body data. In this JavaScript POST request example, the Content-Type: application/json header indicates that the body of the POST message contains JSON, and the Accept: application/json request header tells the server that the client is expecting a JSON in response. You can also send a post request using the new Fetch API method. jQuery users can send post requests using the jQuery.post() method. Click Execute to run JavaScript POST Request Example online and see the result.
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