Javascript

JavaScript is an evolving language with new features and standards emerging regularly. Follow reputable JavaScript blogs, newsletters, and resources to keep your skills up-to-date.

Testing your code is essential to ensure it behaves as expected. You can use testing libraries like Jest or Mocha to write unit tests for your JavaScript code.

Utilize browser development tools for debugging your code. For example, in Chrome DevTools, you can step through your code with a debugger, inspect variables, and view console output.

JavaScript is a prototype-based language, which is different from class-based languages like Java. Understanding how prototypes work will make you a more effective JavaScript programmer.

JavaScript has a non-blocking nature, and understanding asynchronous programming is critical. Get comfortable with callbacks, promises, async/await, and understand how the event loop works.

Global variables can cause collisions and make your code harder to understand. Try to limit the scope of your variables as much as possible. Use 'let' and 'const' instead of 'var' to help manage variable scope.

Consistency in code makes it easier to read and understand. This includes naming conventions, indentation, use of semicolons, etc. Consider using a linter tool like ESLint which can help enforce these standards.

ECMAScript 6 (ES6) introduced several useful features like arrow functions, promises, destructuring, template literals, and more. Using these can make your code more readable and concise.

The 'use strict'; directive in JavaScript helps in identifying common coding issues at compile time itself, rather than at runtime. It prevents the use of undeclared variables, and disallows some syntax likely to be defined in future versions of ECMAScript.