BrowserFeaturesJs/BrowserFeatures.js at master · BaseMax/BrowserFeaturesJs · GitHub

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/**
*
* @Name : BrowserFeatures.js
* @Version : 1.0
* @Programmer : Max
* @Date : 2018-05-19
* @Released under : https://github.com/BaseMax/BrowserFeaturesJs/blob/master/LICENSE
* @Repository : https://github.com/BaseMax/BrowserFeaturesJs
*
**/
;(function(window,document)
{
"use strict";
/**
	* @struct utilities
	*
	* @goal : Global Private Functions
	*
	* @return struct
	**/
varutilities=
{
create : function(value)
{
returndocument.createElement(value);
},
function : function(value)
{
try
{
Function(value);
returntrue;
}
catch(why)
{
returnfalse;
}
},
reference : function(value)
{
if(window[value])
{
returntrue;
}
returnfalse;
},
};
/**
	* @struct utilities
	*
	* @goal : Public Objects
	*
	* @return struct
	**/
varbrowser=
{
function_generator : utilities.function('function* g(){}'),
function_async : utilities.function('async function f(){}'),
function_generator_async : utilities.function('async function* fg(){}'),
event_target : utilities.function('new EventTarget'),
data_transfer_item : utilities.reference('DataTransferItem'),
data_transfer_item_list : utilities.reference('DataTransferItemList'),
broad_cast_channel : utilities.reference('BroadcastChannel'),
viewport : utilities.reference('VisualViewport'),
font : utilities.reference('FontFace'),
custom_element : utilities.reference('customElements'),
animate : utilities.reference('Element.prototype.animate'),
svg : !!document.createElementNS&&!!document.createElementNS("http://www.w3.org/2000/svg","svg").createSVGRect,
touch : !!(("ontouchstart"inwindow)||window.navigator&&window.navigator.msPointerEnabled&&window.MSGesture||window.DocumentTouch&&documentinstanceofDocumentTouch),
webgl : (function(element)
{
try
{
return!!(window.WebGLRenderingContext&&(element.getContext("webgl")||element.getContext("experimental-webgl")));
}
catch(error)
{
returnfalse;
}
})(utilities.create("canvas")),
};
window.browser=browser;
}(window,document));