Optimize your JavaScript and jQuery practices with essential guidelines that enhance code quality and maintainability. This collection covers best practices for coding standards, library usage, and effective debugging, ensuring that your scripts run efficiently and reliably across different environments.
For most of the cases, it quite rare to have problems when omitting semicolons, but there are a few scenarios where they are required to prevent syntax errors or resolve code ambiguities.
We all know that jQuery is very powerful and can do a lot of stuff, including style changes. However, this practice is bad.
Don't assume JavaScript is always enabled.
JavaScript should be used to enhance the overall user experience and not as a dependency.
$(#id) is a selector of jQuery. It gets the single element with the given id.
jQuery is a fast and concise JavaScript Library that simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages. jQuery is designed to change the way that you write JavaScript.
Comments are used to add extra information pertaining to your code. They not only make you understand your code when you look at it after a period of time, but it also help other people who might be working with you on the same project.
The Javascript command "eval" evaluates the content of a text string and then runs it as Javascript code. It's common to see it around, however "eval" is one of the most inefficient constructs that JavaScript has. There are always more efficient ways to code and get a direct reference.
Below are some of the best technically cool jQuery plug-ins. Use these as guidelines for building your jQuery plug-ins:
Below are some of the best visually cool jQuery plug-ins. Use these as guidelines for building your jQuery plug-ins:
TypeScript is the new flagship language from Microsoft that compiles into JavasScript.
Don't use CoffeeScript (language is too different from JavaSript)
The popup blockers in several browsers prevent JavaScript from being used to open windows without user interaction (e.g. clicking a link). You should use an anchor tag instead.
Bear in mind that the load time is a very important aspect on web development. The goal is to make the page load as quickly as possible for the user.
Years ago, it was common to have the "language" attribute within the script tags. This attribute was used to specify the scripting language of the contents of this element.
A website can be broken down into three main development parts: content, design and functionality. To optimize a website for search engines, it's important to separate the content (crucial for search engines) from design and functionality (not important for SEO).
JavaScript is a real language and should be treated like one!
Would you put all your C# code in one file? Would you write single modules with every method your application could need? Of course not! It's important to maintain coding standards when writing JavaScript just as you would when writing C#.
The most common mistake that developers make when moving from jQuery to Angular is that they continue to think about updating the page.
When working with Node.js, choosing the right package manager can significantly impact your project's performance, consistency, and ease of use. While npm is the default, developers often seek alternatives like Yarn, Bun, or pnpm for various advantages. But which one should you use?
Minification and AMD are techniques to improve javascript performance. They can both can be used with vanilla JavaScript and with Typescript
jQuery is the MUST HAVE tool for web developers. There are 3 good reasons why you should use jQuery.
Do you want to make your JavaScript code more efficient and easier to read? Lodash might be the utility library you need. But like any tool, knowing when and how to use it is crucial for the maintainability and performance of your project.
JavaScript is a powerful language, but it can sometimes be tricky to write clean, efficient code. This is where Lodash shines. Lodash is a JavaScript utility library providing handy methods for manipulating and combining arrays, objects, numbers, strings, among other data types.
In a nutshell, Lo-Dash is a super useful library that gives you access to over 100 extremely performant functions to help you avoid reinventing the wheel whilst writing JavaScript.
You can get lodash from GitHub repository, cdnjs or via NPM. Once done you can include a reference in your HTML.