Alorica Interview Questions and Answers

Closure in JavaScript is the combination of a function and the lexical environment within which that function was declared.

• Closure allows a function to access variables from its outer scope even after the outer function has finished executing.

• It is created whenever a function is defined within another function, and the inner function has access to the outer function's variables.

• Example: function outerFunction() { let outerVar = 'I am outer'; function innerFunction() { console...read more

DOM in JavaScript stands for Document Object Model, which represents the structure of a webpage as a tree of objects.

• DOM is a programming interface for web documents.

• It allows scripts to dynamically access and update the content, structure, and style of a webpage.

• DOM is platform and language-independent, providing a structured representation of the document.

A number guessing game program where the user has to guess a randomly generated number.

• Generate a random number within a specified range

• Prompt the user to guess the number

• Provide feedback on whether the guess is too high, too low, or correct

• Allow the user a limited number of attempts before revealing the correct number

Web development is the process of creating websites and web applications using programming languages, frameworks, and tools.

• Involves designing, coding, and maintaining websites

• Uses languages like HTML, CSS, and JavaScript

• Can involve backend development with languages like PHP, Python, or Ruby

• Frameworks like React, Angular, or Vue.js are commonly used

• Skills in responsive design, SEO, and security are important

• Examples: Building an e-commerce site, creating a blog platform, dev...read more

Snake game program involves controlling a snake to eat food and grow while avoiding collisions with walls and itself.

• Use a 2D array to represent the game board

• Implement logic for snake movement, food generation, and collision detection

• Update the game board and display it to the user

• Handle user input to control the snake's direction