Code-Alongs

Code-Along 1: Introduction to CodeSignal

Introduction to CodeSignal and its user interface. This code-along walks you through the CodeSignal platform, how to navigate the interface, and how to approach coding challenges effectively.

During this session, we'll explore the CodeSignal platform and solve a sample problem together. You'll learn how to:

• Read and understand problem statements
• Identify input and output requirements
• Write and test your solution
• Debug issues using the provided test cases
• Submit your final solution

We'll implement a simple function that demonstrates key programming concepts:

// Sample function that checks if a number is even
function isEven(num) {
    // Return true if num is divisible by 2 (even)
    // Return false otherwise (odd)
    return num % 2 === 0;
}

// Testing our function
console.log(isEven(4));  // true
console.log(isEven(7));  // false

Code-Along 2: Advanced Challenges

This code-along focuses on advanced coding challenges, with an emphasis on array manipulation, string operations, and algorithmic problem-solving. We'll work through several medium-difficulty problems to strengthen your technical interview skills.

We'll explore various problem-solving strategies and techniques:

• Breaking down problems into smaller, manageable pieces
• Identifying patterns and edge cases
• Approaching problems systematically
• Optimizing solutions for better performance
• Explaining your thought process (crucial for technical interviews)