Impetus Technologies Software Developer Interview Questions and Answers

A function is a block of code that performs a specific task when called.

• Functions can take input parameters and return output values.

• Functions can be reused multiple times in a program.

• Functions help in organizing code and making it more modular.

• Example: function add(a, b) { return a + b; }

Accessing the Document Object Model (DOM) allows developers to interact with and manipulate elements on a web page.

• Use document.getElementById() to access an element by its ID

• Use document.getElementsByClassName() to access elements by their class name

• Use document.getElementsByTagName() to access elements by their tag name

• Use document.querySelector() to access the first element that matches a specified CSS selector

• Use d...read more

React is a JavaScript library for building user interfaces. Redux is a predictable state container for managing application state.

• React is a front-end library developed by Facebook for building user interfaces.

• React uses a virtual DOM to efficiently update the actual DOM.

• Redux is a state management tool commonly used with React to manage application state.

• Redux stores the entire application state in a single immutable