Better Error Handling In Html5
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error handling HTML5 vs HTML402 August, 20128 CommentsAn overview of the main features that make HTML5 different from its previous version, css HTML4, including markup, error handling, APIs and multimedia content.Read more 12 380 Technology Internet issues Programming languages Smartphones Tablets Telecom Companies Cloud brokers Go To Market Zeendo Project News Events Tips Marketing Strategies Advertising Mobile market research SEO/SEM Social Media Website Analytics Web Design Responsive design Website templates Website Trends Copyright © 2015 Zeendo Terms of Service Privacy Policy
Workers, and showed you how you can use the technology to post messages using JSON. This week we will tell you which web browsers support them, discuss the elements that are javascript non-accessible to them, and dig into error handling & debugging. Browsers Support Web Workers have just arrived in the IE10 Platform Preview. This is also supported by Firefox (since 3.6), Safari (since 4.0), Chrome & Opera 11. However, this is not supported by the mobile versions of these browsers. If you’d like to have a more detailed support matrix, have a look here: http://caniuse.com/#search=worker In order to http://zeendo.com/info/tag/html5-error-handling/ dynamically know that this feature is supported in your code, please use the feature detection mechanism. (You shouldn’t use some user-agent sniffing!) To help you, there are 2 available solutions. The first one is to simply test the feature yourself using this very simple piece of code: /* Checking if Web Workers are supported by the browser */ if (window.Worker) { // Code using the Web Workers http://www.htmlgoodies.com/html5/client/introduction-to-html5-web-workers-browser-support-non-accessible-elements-and-error-handling.html } The second one is to use the famous Modernizr library (now natively shipped with the ASP.NET MVC3 project templates). Then, simply use a code like that: Here, for instance, is the current support in your browser: Web Workers are not supported inside your browser. This will allow you to expose 2 versions of your application. If Web Workers are not supported, you will simply execute your JavaScript code as usual. If Web Workers are supported, you will be able to push some of the JavaScript code to the workers to enhance the performance of your applications for the most recent browsers. You won’t then break anything or build a specific version only for the very latest browsers. It will work for all browsers with some performance differences. Non-accessible Elements From a Worker Rather than looking at what you don’t have access to from Workers, let’s take a look at what you only have access to: Method Description void close(); Terminates the worker thread. void importScripts(urls); A comma-separated list of additional JavaScr
have one thing in common; if a