Debounce example: It runs the passing function after keyup event is triggred and 500 milis is passed.

debounce.js

function debounce(event, func) {
    const target = event.target;
    
    clearTimeout(target.setTimeoutId);
    target.setTimeoutId = setTimeout(() => func(target.value), 500);
}

document.getElementById("name")
    .addEventListener("keyup", (event) => {
        debounce(event, (value) => {
            console.log("Print it after 500ms delay. Value: ", value);
        });
    });