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How to Write JavaScript Code (JavaScript Methods, Patterns, Rules, Conventions, Best Practices)

How do your write custom JavaScript code? Are there any rules or pattern to follow? Let say you are writing simple vanilla JavaScript code or you are working with jQuery. Which method, pattern you shall use? Of course complex JavaScript libraries and frameworks have their own set of rules. But for vanilla JavaScript or jQuery and in case of writing your custom JavaScript file it's kind of seems like freedom. You can begin and end anywhere and type any piece of code or function in any way, method or anywhere. But is it really? But its good to set rules and have a pattern. A pattern will help you write clean code. It will help you understand and manage your code later on. And other web developers in team will also be able to understand, use that code and will appreciate it. Will you throw all the code in JavaScript file randomly? Some of it will not even work because that will need firing after DOM is loaded? Are you including checks for DOM loaded, window loaded and window resized? If you use document ready (DOM loaded) and window resized checks. Will you duplicate your code in both these check if you need the code in both events? So there are DOM loaded, Window Resize, Window Scroll and Window loaded checks. These are kind of our check points, that we can use to our advantage and use code inside these depending on when we want our particular code to be executed. So this is what we will do. We will use functions to write our code. Each piece of code or functionality will be in a single function. So that we can use that function in any of those pointers on need. we have DOM Loaded and Window loaded events available in vanilla JavaScript. Add event listeners for DOMContentLoaded and window load and use functions to call code when these events are being triggered. I use event listeners at the top and then I keep my functionalities in separate functions and then i call my functions inside those event listeners depending on need. I need screen check on DOM ready and on Window resized to check window width. So I am using that function in two locations but it is not duplication. I am just calling my function twice in both scenarios. So how do you write your custom JavaScript file? What method do you use? Which rules do you follow? I want to know. Let me know in comments. ✅ How To Hide / Protect JavaScript Code - Techniques and Tools    • How To Hide / Protect JavaScript Code...   ✅ React JS UNDEFINED Solution | Reactjs Learning | Learn ReactJS & JavaScript Debugging Fast    • How to Prevent TypeError Cannot Read ...   ✅ Calculate Sum or Total from Values in Array & Array Object | Learn JavaScript | Reduce Method    • How to Find Sum of An Array of Number...   ✅ Get URL Parameters in JavaScript | URLSearchParams    • Get URL Parameters in JavaScript | UR...   ✅ DIV to PDF, Iframe to PDF using JavaScript Only (with CSS & Images Support)    • DIV to PDF, Iframe to PDF using JavaS...   ✅ How To UnMinify JavaScript Minified Files Easily | Decrypt Complex JavaScript Code    • How To UnMinify JavaScript Minified F...   ✅ Toggle Class in Vanilla JavaScript | Learn JavaScript    • Toggle Class in Vanilla JavaScript   ✅ How to Execute a JavaScript File by using NPM    • How to Run a JavaScript File using NPM   ✅ Get User's Location (Country, State, City) with Free Unlimited API Access | PHP & JavaScript    • Get User Location (Country, State, Ci...   ✅ Replace jQuery with Vanilla JavaScript Code Easily | jQuery vs JavaScript    • Replace jQuery with Vanilla JavaScrip...   ✅ Toggle in Vanilla JavaScript    • Toggle in Vanilla JavaScript | Pure J...   ✅ MINIFY JAVASCRIPT FILES & FOLDERS in Multiple Ways (Command Line & Code Editor)    • MINIFY JAVASCRIPT FILES & FOLDERS in ...   ✅ JavaScript vs jQuery | Difference between JavaScript and jQuery    • JavaScript vs jQuery | Difference bet...   ✅ JavaScript Variable Redeclare & Reassign | VAR vs LET vs CONST | Practical Examples    • VAR vs LET vs CONST | JavaScript Vari...   Give this video a LIKE SUBSCRIBE to Channel if you haven't already Hit BELL icon to receive updates Share your thoughts in comments Share our videos on social media platforms Give us feedback Follow us on social media Channel:    / webstylepress   Website: https://www.webstylepress.com FaceBook:   / webstylepress   Twitter:   / webstylepress   Instagram:   / webstylepress   LinkedIn:   / webstylepress   GitHub: https://github.com/webstylepress #js #javascript #webdevelopment #tutorials #programming #coding #coder #webstylepress