如何将JavaScript转换为JQuery？

Question

如何将其转换为JQuery？

function contantForm()
{
    let Username = document.getElementById("Username").value;  //create element Id called Username
    let Emailinput = document.getElementById("Email").value; //create element Id called Emailinput
    alert("Thank you " + Username) //alerts user with thier username after clicking submit
    document.getElementById("Username").value=""; //get username Id from index page
    document.getElementById("Email").value=""; //get email Id from index page
    document.getElementById("Phone").value=""; //get phone Id from index page
}

谢谢，

Answer 1

纯JS和Jquery可以一起工作，您的代码始终可以使用jquery，也可以不使用jquery，但是如果您希望所有代码都采用相同的格式，那么]。

function contantForm()
{
    let Username = $("#Username").val();  
    let Emailinput = $("#Email").val(); 
    alert("Thank you " + Username) 
    $("#Username").val(""); 
    $("#Email").val(""); 
    $("#Phone").val(""); 
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>