What are the roles and responsibilities of a Web Developer?
Program test and debug all web applications Design, develop, test and deploy web applications Uploading sites onto server and registering it with different search engines Coordinate with other designers and programmers to develop web projects Fix bugs, troubleshoot and resolve problems In case of system failure initiate periodic testing and implement contingency plans Develop appropriate code structures to solve specific tasks Support and assist in the upkeep and maintenance of websites Assume ownership of code throughout staging, development, testing and production
Synchronous programming means that the code is executed sequentially from top-to-bottom, blocking on long-running tasks such as network requests. Asynchronous programming starts with a request and the code keeps running without blocking for the result. When the response is ready, an interrupt is fired, which causes an event handler to be run, where the control flow continues. In this way, a single program thread can handle many concurrent operations.
What does DOCTYPE mean?
DOCTYPE is something tells the browser which type of HTML is used on a website or page. Browsers use DOCTYPE to determine how to render a page.