This article will explain what asynchronous code is, some of the difficulties of using asynchronous code, and ways of handling these difficulties. What is the difference between synchronous and asynchronous code? Synchronous code In synchronous programs, if you have two lines of code (L1 followed by L2), then L2 cannot begin running until L1 has finished executing. You can imagine this as if you are in a line of people waiting to buy train tickets.
Automated tests enhance software stability by catching more errors before software reaches the end user. They provide a safety net that allows developers to make changes without fear that they will unknowingly break something in the process. The Cost of Neglecting Tests Contrary to popular intuition, maintaining a quality test suite can dramatically enhance developer productivity by catching errors immediately.
Three of the most popular solutions are Grunt, Gulp and Webpack. Each of these tools are built on different philosophies, but they share the same common goal: to streamline the front-end build process. For example, Grunt is configuration-driven while Gulp enforces almost nothing. In fact, Gulp relies on the developer writing code to implement the flow of the build processes - the various build tasks. When it comes to choosing one of these tools, my personal favorite is Gulp.
Gulp API Gulp comes with just four simple functions: gulp.task gulp.src gulp.dest gulp.watch These four simple functions, in various combinations offer all the power and flexibility of Gulp. Out of these four functions, the first three are absolutely essential for any Gulp file. allowing tasks to be defined and invoked from the command line interface.
Thanks to all of SitePoint’s peer reviewers for making SitePoint content the best it can be! One of the biggest stumbling blocks when writing unit tests is what to do when you have code that’s non-trivial. In real life projects, code often does all kinds of things that make testing hard. Ajax requests, timers, dates, accessing other browser features… or if you’re using Node.js, databases are always fun, and so is network or file access.