Boost web app performance with these 5 tips: trim bundle size, lazy load components, optimize images, cache frequently-used data & code split large apps. Your users (and future self) will thank you!

JavaScript operators are essential for performing operations, making decisions & manipulating data. Mastering them will give you a strong foundation for building anything from simple apps to complex systems.

Data types in programming define how data is stored & processed. Learn about common data types in JavaScript: primitive (Number, String, Boolean) & composite (Object, Array, Function) for efficient, robust & error-free code.

Learn JavaScript variables: declare with var, let, or const, follow naming rules, understand primitive & complex data types, and grasp scope for clean code.