JS Code to disable the right click in the webpage!

disable_right_click.js

/**
     * Disable right-click of mouse, F12 key, and save key combinations on page
     */
/* You can put this in a js file for directly put it in html flie using script tag */
    window.onload = function() {
        document.addEventListener("contextmenu", function(e) {
            e.preventDefault();
        }, false);
        document.addEventListener("keydown", function(e) {
            //document.onkeydown = function(e) {
            // "I" key
            if (e.ctrlKey && e.shiftKey && e.keyCode == 73) {
                disabledEvent(e);
            }
            // "J" key
            if (e.ctrlKey && e.shiftKey && e.keyCode == 74) {
                disabledEvent(e);
            }
            // "S" key + macOS
            if (e.keyCode == 83 && (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey)) {
                disabledEvent(e);
            }
            // "U" key
            if (e.ctrlKey && e.keyCode == 85) {
                disabledEvent(e);
            }
            // "F12" key
            if (event.keyCode == 123) {
                disabledEvent(e);
            }
        }, false);

        function disabledEvent(e) {
            if (e.stopPropagation) {
                e.stopPropagation();
            } else if (window.event) {
                window.event.cancelBubble = true;
            }
            e.preventDefault();
            return false;
        }
    };