How can I get bootstrap version via javascript?

Question

Is there any way to get bootstrap version via calling a function? I did some research but couldn't find any way, the version information is included in the comments at the beginning like this:

/*! * Bootstrap v3.3.7 (http://getbootstrap.com) * Copyright 2011-2016 Twitter, Inc. * Licensed under the MIT license */

But in case the comments are removed how do I get the bootstrap version? Bootstrap plugins have a version defined in them but I'm looking for the general bootstrap version, not version of a particular plugin.

Answer 1

The version of each of Bootstrap's jQuery plugins can be accessed via the VERSION property of the plugin's constructor. For example, for the tooltip plugin:

$.fn.tooltip.Constructor.VERSION // => "3.3.7" 

src //getbootstrap.com/javascript/#js-version-nums

if you mean from the css, then yu ahve to AJAX the file and .match(/v[.\d]+[.\d]/);

Answer 2

You can use this code found here :

  var getBootstrapVersion = function () {   var deferred = $.Deferred();    var script = $('script[src*="bootstrap"]');   if (script.length == 0) {     return deferred.reject();   }    var src = script.attr('src');   $.get(src).done(function(response) {     var matches = response.match(/(?!v)([.\d]+[.\d])/);     if (matches && matches.length > 0) {       version = matches[0];       deferred.resolve(version);     }   });    return deferred; };  getBootstrapVersion().done(function(version) {   console.log(version); // '3.3.4' });