The Single Responsibility Principle in JavaScript means that a function or module should have only one reason to change, focusing on a single task or responsibility.

What does the S in SOLID stand for?

Arrow functions do not have their own arguments object; they inherit arguments from the enclosing function or the global scope.

Arrow functions do not have their own this context.

They have an implicit 'return' when used with a single expression.

Arrow functions cannot be used as constructors.

Arrow functions have their own arguments object.

Which of the following is NOT true about arrow functions in JavaScript?

"String" is a primitive data type used to represent text. JavaScript does not have specific types like "Integer" or "Character."

Which of the following is a JavaScript data type?

Both interface and type can be extended, but interface can be merged automatically by the compiler, while type cannot.

 Type can only be used for primitive types, while interface is for objects.

Only interface can be extended with additional properties.

Interface allows for method implementations, while type does not.

Interface can be merged automatically by the compiler, while type cannot.

What is the difference between an Interface and a Type in TypeScript?

 The fs module is a core module in Node.js used for interacting with the file system.

Which of the following is a core module in Node.js?

The EventEmitter class in Node.js is used to handle events and facilitate asynchronous operations by allowing objects to emit events and other objects to listen and respond to those events.

To manage events and asynchronous operations.

What is the primary purpose of the EventEmitter class in Node.js?

In JavaScript, null is a primitive value, but due to a historical bug in the language, typeof null incorrectly returns "object" instead of "null". 

What will be the output of console.log(typeof null);

The useEffect hook in React is used to perform side effects such as data fetching, subscriptions, or manually changing the DOM in functional components. 

To perform side effects in function components.

To create and manage state in function components.

What is the purpose of useEffect in React?

i++ (post-increment) returns the original value of i before incrementing, whereas ++i (pre-increment) increments i first and then returns the new value.

i++ increments the value before using the value, while ++x increments after

i++ increments the value after using it, while ++i increments before.

i++ and ++i are equivalent and produce the same result.

i++ only works with numbers, while ++i works with any data type.