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  • How to detect the arrow key on press using Javascript

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    Hello reader's! If you are making the website based on user press key events. Then to detect the arrow key pressed by user we can code as below:-

    document.onkeydown = function(e) {
        switch (e.keyCode) {
            case 37:
                alert('You just press Left key');//Left arrow key is pressed
                break;
            case 38:
                alert('You just press Up key');//Up arrow key is pressed
                break;
            case 39:
                alert('You just press Right key'); //right arrow key is pressed
                break;
            case 40:
                alert('You just press Down key'); //Down arrow key is pressed
                break;
        }
    };
    

    The output will be an alert box saying 'Left arrow key is pressed'

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