I am looking for a way to test if a browser can have an external svg reference in the use element:  <svg>     <use xlink:href="sprite.svg#icon-name"></use> </svg>   This works in most modern browsers, but does not work...
I have to use OpenCV in a web application. I know the Python and the C++ library but I need to use it with Express.js now. For this I need object detection, feature detection, preferably SIFT and eventually basic stuff from the machine learning modul...
Especially if as JS feature detection can i use:  if (localStorage in window) { // you have local storage }   or even easier:  if (crypto.subtle) { // you can encrypt document}   And for css detection:  if (CSS.supports('display', 'flex&#...
http://caniuse.com/ is a very helpful tool to figure out which browsers/versions support a specific CSS, HTML, JS feature. What about a tool that parses my code and tells me what features I'm actually using? If you have a large codebase, finding...
I'm trying to implement feature detection in a typescript function, but I keep getting linting errors.  It is obvious why I get them, because in some of the cases I'm checking against, the feature doesn't exist in the typescript definitio...
For a game we're working on we are currently looking to segment our users into "can download loads of data quickly" and "is on a slow connection" so we can ship different types of assets (e.g. fewer animations, smaller images, etc...
I'm trying to avoid Modernizr because it's huge, and I've seen that most people use code like this:   var div = document.createElement('div'); if(div.style['transform'])...   But is it really necessary to create a new elem...
I want the code (C# / JavaScript) to detect which mobile browsers are support HTML5. I have the code to detect the HTML5(canvas) compatibility for desktop browsers. But this code is not working for mobile browsers.   if (!!document.createElement('...

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