Exercise Create Function in JavaScript

We've written this code:

console.log("Hello AlgoCademy!");
console.log("Coding is amazing!");
console.log("Functions are so useful!");

console.log("Hello AlgoCademy!");
console.log("Coding is amazing!");
console.log("Functions are so useful!");

console.log("Hello AlgoCademy!");
console.log("Coding is amazing!");
console.log("Functions are so useful!");

Write the same code in a better way by creating and calling a function printMessages()

Understanding the Problem

The core challenge here is to avoid repetitive code by using a function. Functions help in making the code more modular, readable, and maintainable. This problem is significant because it introduces the concept of functions, which are fundamental in programming for code reuse and organization.

Approach

To solve this problem, we need to encapsulate the repeated code inside a function and then call this function multiple times. This approach reduces redundancy and makes the code cleaner.

Naive Solution

The naive solution is the one provided in the problem statement, where the same set of console.log statements are repeated multiple times. This is not optimal because it leads to code duplication and makes the code harder to maintain.

Optimized Solution

The optimized solution involves creating a function printMessages() that contains the repeated console.log statements. We then call this function three times to achieve the same output.

Algorithm

Here is a step-by-step breakdown of the optimized solution:

Create a function named printMessages.
Inside the function, include the three console.log statements.
Call the printMessages function three times.

Code Implementation

// Define the function printMessages
function printMessages() {
  // Print the messages
  console.log("Hello AlgoCademy!");
  console.log("Coding is amazing!");
  console.log("Functions are so useful!");
}

// Call the function three times
printMessages();
printMessages();
printMessages();

Complexity Analysis

The time complexity of this solution is O(1) because the number of operations is constant and does not depend on any input size. The space complexity is also O(1) as we are not using any additional data structures.

Edge Cases

There are no significant edge cases for this problem since it involves simple function calls and console logging. However, it's good practice to ensure that the function is called the correct number of times to match the desired output.

Testing

To test the solution, you can simply run the code and verify that the output matches the expected result. The expected output should be:

Hello AlgoCademy!
Coding is amazing!
Functions are so useful!
Hello AlgoCademy!
Coding is amazing!
Functions are so useful!
Hello AlgoCademy!
Coding is amazing!
Functions are so useful!

Thinking and Problem-Solving Tips

When approaching problems like this, always look for patterns and repetitions in the code. Functions are a powerful tool to encapsulate repeated logic and make your code more modular. Practice writing functions for different tasks to get comfortable with this concept.

Conclusion

In this exercise, we learned how to use functions to avoid code repetition and make our code more maintainable. Understanding and using functions is crucial for writing efficient and clean code. Keep practicing by identifying repetitive patterns in your code and encapsulating them in functions.

Exercise: Create Function in JavaScript