Javascript

JavaScript is a powerful programming language used mainly to add interactivity to websites. It runs ...

Variables in JavaScript are containers to store data values. You can declare variables using 'let', ...

Operators perform operations on variables and values. Arithmetic operators help perform calculations...

Functions are reusable blocks of code designed to perform a specific task. They can accept parameter...

Conditional statements let your code make decisions by running different code blocks based on true o...

Loops allow you to repeat code multiple times, saving effort and code space. The 'for' loop runs a s...

Arrays store ordered collections of data. Each element has a numeric index starting at zero. Arrays ...

Objects are collections of key-value pairs that model real-world entities. Keys (properties) are str...

The Document Object Model (DOM) is a programming interface for HTML documents. JavaScript can select...

Events represent user interactions or browser actions like clicks, typing, or loading a page. JavaSc...

Advanced function techniques include closures (functions retaining access to their lexical scope), h...

JavaScript runs in a single thread but handles asynchronous tasks like data fetching or timers using...

JavaScript provides try-catch blocks to handle errors gracefully without stopping the entire program...

Modern JavaScript (ES6 and later) introduces enhancements like template literals (for easier string ...

Modules let you split your code into separate files and reuse code by exporting and importing variab...

JavaScript supports OOP using prototypes and ES6 classes. Classes enable defining blueprints for obj...

Promises represent future values in asynchronous code, helping manage sequences of async tasks. Asyn...

Design patterns provide reusable solutions to common coding problems. Familiar patterns in JavaScrip...

Effective JavaScript programming requires awareness of memory usage. Understanding garbage collectio...

Testing ensures code works as expected; JavaScript has tools like Jest, Mocha, and Jasmine for unit ...