• Closures in JavaScript
• Event Loop: Microtasks vs Macrotasks
• The this keyword in JavaScript
• Prototypes and prototypal inheritance in JavaScript
• Promises in JavaScript and promise methods
• What is async/await in JavaScript
• scope in JavaScript: types and working principles
• Debounce and throttle in JavaScript
• Execution context in JavaScript
• Call, apply and bind methods in JavaScript
• hoisting in JavaScript
• Promise.all, promise.race, promise.allsettled, promise.any
• Differences between var, let and const
• What is the call stack in JavaScript?
• Differences between arrow Function, Function declaration and Function expression
• OOP in JavaScript (Object-oriented programming)
• Data types in JavaScript
• Lexical environment in JavaScript
• What is garbage collector in JavaScript?
• Event delegation
• Event propagation in JavaScript and its phases
• Type coercion in JavaScript (implicit vs explicit)
• What are higher-order functions in JavaScript (hof)
• Pure functions and side effects in JavaScript
• Mutating and non-mutating Array methods in JavaScript
• How to copy an Object in JavaScript?
• JavaScript modules: import/export, CommonJS vs es modules
• What is code splitting?
• Spread and REST operators in JavaScript: differences and examples
• Difference between primitives and non-primitives in JavaScript