"setTimeout((this), 100)"įinally, let's show the user a GMail-style notice after 5 seconds, just to let them know that we're running slow or have just plain died. Now, to modify the ajax_progress helper to simple beauty. This will prevent the link from doing anything if the user clicks it twice. Time to open up application.js and create a ghetto pseudoclass singleton thingy. We going to step it up one more, because this code belongs in a library. Auto Close Tag automatically adds a closing tag, which saves you quite a lot of keystrokes over time, while. However, using these two extensions from Jun Han, will give you much of the same experience in Code. You can use setTimeout on a form to change the action, so it can't be submitted twice (for important forms) I dont usually write HTML in VSCode, since the HTML editor in Visual Studio 2017 is pretty awesome. The setTimeout is useful because it lets us modify the tag (even remove it from the DOM) without messing with the ajax request. Because it's bound, we can refer to "this" inside the function and get the anchor tag. We binding the anonymous function to "this", which in this context refers to the 'A' anchor tag. SetTimeout takes either a function name or an anonymous function. category), :before => ajax_progress, :method => :put } %> To keep the view clean, We'll implement it as a simple view helper in application_helper.rb So, let's add some code to prevent the user from clicking twice. For example, there's no way here for a global ajax responder to get the anchor object. You can also read a brief history on the invention of the favicon by its creator, Ray Sun.Įnjoy this piece? I invite you to follow me at /dudleystorey to learn more.You may know that you can add a global ajax responder to your application:īut we not going to cover that here, because you can't get the originating object. I would strongly recommend reading Jonathan T Neal’s article on the vagaries of favicons. This acts as a good compromise between the first two options. ico file for Internet Explorer, which is left at the root of the site. The best quality, at the cost of significantly higher file size.Ĭreate a 96 × 96 PNG file, served as a favicon for all browsers except IE. The best supported option, but the lowest quality.Ĭreate an advanced favicon at several resolutions, storing each version in the same file. For this reason, I recommend taking one of three approaches in building a favicon:Ĭreate a standard 16 × 16 pixel favicon as an. Different browsers will automatically use different resolutions of the. ico file, rather like PhotoShop and layers in PSD files. ico format still has a number of advantages besides broad browser support: the format has the unusual capacity of being able to store multiple versions of the icon at different resolutions inside a single. Similarly, PNG would be great if we could disregard the singular exception of IE. Unfortunately, as you can see, Firefox, Safari and Internet Explorer do not currently support the format, at least for favicons. The other supported formats are: Browser version support for favicon formats Browser PNG JPEG SVGĪn SVG icon would be ideal in many cases: favicons are often (but not exclusively) graphical, and as vectors, SVG icons would scale to absolutely any size required. While simple favicons are good, technology has moved on since the format was first proposed in 1999: a 16 × 16 pixel favicon.ico file will continue to work in all browsers, but icons in new, larger sizes and different formats are optimal for newer browsers, platforms, and social media services.Īll browsers support the. Coupled with an effective and succinct page title, a well-designed favicon will make your page easier to spot (especially when a user has two dozen tabs open), remember, and recover (from a bookmark list of hundreds of sites). Favicons are a very simple and effective way of making your site stand out, but a significant proportion of professional developers still fail to create their own favicon branding. This icon, called a favicon, may also appear in favourites, bookmarks, and history lists. You may have noticed the small icon for this blog in the URL bar and/or on the tab for the page.
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