JavaScript Enter Key Event to Prevent Form Submission We pass in the type of keyboard event to trigger into the first argument of the constructor. For instance, we can write: For details, please see the table below. onkeypress event is fired when the value of a textbox changes and it works well in Firefox. Be aware that this feature may cease to work at any time. functiondemo, move to it using the following command: Project Structure: It will look like the following. Difference between DOMContentLoaded and load Events, Difference between server sent events and Websockets in HTML5. How to solve Submit is not a function error in JavaScript ? How to show Page Loading div until the page has finished loading? let keysPressed = {}; document.addEventListener ('keydown', (event) => { keysPressed [event.key] = true; }); When a key is pressed we add the value as the object key and set it to true. Unlike the deprecated keypress event, the keydown event is fired for all keys, regardless of whether they produce a character value. The keyboard events occur in this order: keydown, keyup, keypress The problem with backspace probably is, that the browser will navigate back on keyup and thus your page will not see the keypress event. Object.onKeyPress="execute function or code" DEMO onkeypress using JavaScript Objects ; getElementById. the event key press is fired but key press event does not trigger if we press home key or end key or left arrow key on the keyboard. (presskeys==8||presskeys==46)&&(presskeys<48||presskeys>57)){, (currenttxtbxid.value.length>=nxttxtbxid.value.maxLength){. , ,