Homework & Coding Practice

Homework/Practice Coding Assignment (20-min)

Write JavaScript Functions to Calculate Areas

Step-by-Step Procedure:

1. Create a Function to Calculate Circle Area:

   • Formula: Area = π × r².

   • Code Example:

     javascript코드 복사const circleArea = (radius) => Math.PI * radius ** 2;
     console.log('Circle Area:', circleArea(5));

2. Create a Function to Calculate Rectangle Area:

   • Formula: Area = length × width.

   • Code Example:

     javascript코드 복사const rectangleArea = (length, width) => length * width;
     console.log('Rectangle Area:', rectangleArea(10, 5));

3. Create a Function to Calculate Triangle Area:

   • Formula: Area = 0.5 × base × height.

   • Code Example:

     javascript코드 복사const triangleArea = (base, height) => 0.5 * base * height;
     console.log('Triangle Area:', triangleArea(6, 8));

4. Use Console Logs to Display Results:

   • Combine all functions in one script:

     javascript코드 복사console.log('Circle:', circleArea(5));
     console.log('Rectangle:', rectangleArea(10, 5));
     console.log('Triangle:', triangleArea(6, 8));

5. Test the Script:

   • Save the script as areas.js and run using:

     bash코드 복사node areas.js

6. Prepare Observations:

   • Note down the results and any potential edge cases (e.g., negative inputs).