- Keep code readable and maintainable: Use clear, descriptive variable names and structure code using indentation, white spaces, and consistent formatting.
- Use modular design patterns: Break code into reusable and modular components to make it easier to test, debug, and maintain.
- Declare variables with ‘let’ and ‘const’: Use ‘const’ for variables that shouldn’t be re-assigned and ‘let’ for those that need to change.
- Use arrow functions for anonymous functions: Arrow functions are more concise and preserve the value of ‘this’ from the surrounding scope.
- Handle errors and exceptions: Use try-catch blocks to handle errors and exceptions in your code.
- Avoid global variables: Global variables can lead to naming conflicts and are generally considered bad practices.
- Use strict equality operator (===) instead of abstract equality operator (==): The strict equality operator tests for both type and value equality, while the abstract equality operator may perform type coercion.
- Use a linter: A linter helps enforce coding standards and catch potential bugs before they become a problem.
- Write tests for your code: Automated tests help ensure code quality and catch regressions.
- Keep up with the latest developments: The JavaScript language and its associated technologies are constantly evolving. Stay up to date with the latest developments to make the most of the language.
JavaScript Best Practices
Use strict equality operator (===) instead of abstract equality operator (==): The strict equality operator tests for both type and value equality, while the abstract equality operator may perform type coercion.