debounec in javavscript code example

Example: debounec in javavscript

<script>
var button = document.getElementById("debounce");
const debounce = (func, delay) => {
    let debounceTimer
    return function() {
        const context = this
        const args = arguments
            clearTimeout(debounceTimer)
                debounceTimer
            = setTimeout(() => func.apply(context, args), delay)
    }
} 
button.addEventListener('click', debounce(function() {
        alert("Hello\nNo matter how many times you" +
            "click the debounce button, I get " +
            "executed once every 3 seconds!!")
                        }, 3000));
</script>