detect enter key in input javascript code example

Example 1: how to check if enter is pressed javascript

$('#usersearch').keydown(function(e){
    if(e.keyCode === 13){
            alert("Enter was pressed ");
     }  
});

Example 2: input enter button js

// Get the input field
var input = document.getElementById("myInput");

  
input.addEventListener("keyup", (event) => {
    if (event.key === "Enter") {
        // Cancel the default action, if needed
        event.preventDefault();
        // Trigger the button element with a click
        document.getElementById("myBtn").click();
    }
})