Getting scroll bar width using JavaScript [duplicate]

The following HTML will display a scroll bar on the right inside edge of div.container.

Is it possible to determine the width of that scroll bar?

<div class="container" style="overflow-y:auto; height:40px;">
  <div class="somethingBig"></div>
</div>

Answers:

Answer

This function should give you width of scrollbar

function getScrollbarWidth() {

  // Creating invisible container
  const outer = document.createElement('div');
  outer.style.visibility = 'hidden';
  outer.style.overflow = 'scroll'; // forcing scrollbar to appear
  outer.style.msOverflowStyle = 'scrollbar'; // needed for WinJS apps
  document.body.appendChild(outer);

  // Creating inner element and placing it in the container
  const inner = document.createElement('div');
  outer.appendChild(inner);

  // Calculating difference between container's full width and the child width
  const scrollbarWidth = (outer.offsetWidth - inner.offsetWidth);

  // Removing temporary elements from the DOM
  outer.parentNode.removeChild(outer);

  return scrollbarWidth;

}

Basic steps here are:

  1. Create hidden div (outer) and get it's offset width
  2. Force scroll bars to appear in div (outer) using CSS overflow property
  3. Create new div (inner) and append to outer, set its width to '100%' and get offset width
  4. Calculate scrollbar width based on gathered offsets

Working example here: http://jsfiddle.net/slavafomin/tsrmgcu9/

Update

If you're using this on a Windows (metro) App, make sure you set the -ms-overflow-style property of the 'outer' div to scrollbar, otherwise the width will not be correctly detected. (code updated)

Update #2 This will not work on Mac OS with the default "Only show scrollbars when scrolling" setting (Yosemite and up).

Answer

// offsetWidth includes width of scroll bar and clientWidth doesn't. As rule, it equals 14-18px. so:

 var scrollBarWidth = element.offsetWidth - element.clientWidth;
Answer

If the child takes the full width of the container excluding scrollbar (the default), then you can subtract the widths:

var child = document.querySelector(".somethingBig");
var scrollbarWidth = child.parentNode.offsetWidth - child.offsetWidth;
Answer

I think this will be simple and fast -

var scrollWidth= window.innerWidth-$(document).width()
Answer

Assuming container is only on page once and you are using jQuery, then:

var containerEl = $('.container')[0];
var scrollbarWidth = containerEl.offsetWidth - containerEl.clientWidth;

Also see this answer for more details.

Answer

I've used next function to get scrollbar height/width:

function getBrowserScrollSize(){

    var css = {
        "border":  "none",
        "height":  "200px",
        "margin":  "0",
        "padding": "0",
        "width":   "200px"
    };

    var inner = $("<div>").css($.extend({}, css));
    var outer = $("<div>").css($.extend({
        "left":       "-1000px",
        "overflow":   "scroll",
        "position":   "absolute",
        "top":        "-1000px"
    }, css)).append(inner).appendTo("body")
    .scrollLeft(1000)
    .scrollTop(1000);

    var scrollSize = {
        "height": (outer.offset().top - inner.offset().top) || 0,
        "width": (outer.offset().left - inner.offset().left) || 0
    };

    outer.remove();
    return scrollSize;
}

This jQuery-based solutions works in IE7+ and all other modern browsers (including mobile devices where scrollbar height/width will be 0).

Answer

If you use jquery.ui, try this code:

$.position.scrollbarWidth()
Answer

Here's an easy way using jQuery.

var scrollbarWidth = jQuery('div.withScrollBar').get(0).scrollWidth - jQuery('div.withScrollBar').width();

Basically we subtract the scrollable width from the overall width and that should provide the scrollbar's width. Of course, you'd want to cache the jQuery('div.withScrollBar') selection so you're not doing that part twice.

Answer

this worked for me..

 function getScrollbarWidth() { 
    var div = $('<div style="width:50px;height:50px;overflow:hidden;position:absolute;top:-200px;left:-200px;"><div style="height:100px;"></div>'); 
    $('body').append(div); 
    var w1 = $('div', div).innerWidth(); 
    div.css('overflow-y', 'scroll'); 
    var w2 = $('div', div).innerWidth(); 
    $(div).remove(); 
    return (w1 - w2); 
}

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