The following JavaScript code will display the message “Plea…

The following JavaScript code will display the message “Please enter your name!” instead of the browser’s native error message when executed in response to a user trying to submit a web form without entering text in the lastName field, which has the required attribute. let lastName = document.getElementById(“lastName”);lastName.setCustomValidity(“Please enter your name!”);

You can use the fetch() method to send an asynchronous POST…

You can use the fetch() method to send an asynchronous POST request to a server by passing in as arguments the location of the server resource and an options object that includes the method: POST, headers: value, and body: value options to describe the HTTP message.