Disable Scrollbars but Allow Wheel and Arrow Key Scrolling with JavaScript
Many applications require the ability to disable scrollbars from the viewport or specific elements while allowing the user to scroll with the mouse wheel or arrow keys. Achieving this effect requires a combination of JavaScript and CSS.
To disable scrollbars, set the CSS property overflow: hidden. This will prevent the appearance of both horizontal and vertical scrollbars.
For mouse wheel scrolling, bind the event listener to the target element. Within the event handler, calculate the current scroll position using scrollTop and dynamically adjust it based on the delta value from the mouse wheel event.
For arrow key scrolling, attach a keydown listener to handle keystrokes. Capture arrow key events and use scrollTop and scrollLeft to move the element accordingly. Note that arrow key handling is not supported by keypress in all browsers; keydown should be used instead.
For example, here's how to handle mouse wheel scrolling using jQuery and the mousewheel plugin:
<div>
$("#example").bind("mousewheel", function(ev, delta) { var scrollTop = $(this).scrollTop(); $(this).scrollTop(scrollTop - Math.round(delta)); });
Adjust the values in this example as needed, and don't forget to include the necessary CSS and JavaScript references. By combining these techniques, you can create an interactive scrolling experience without visible scrollbars.
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