find the area of a square in typescript

To find the area of a square in TypeScript, we need to use the formula:

Area of a square = side * side

Here's how we can implement it in TypeScript:

index.ts
function findAreaOfSquare(side: number): number {
  const area: number = side * side;
  return area;
}

// Example usage
const squareArea: number = findAreaOfSquare(5);
console.log(`Area of the square is: ${squareArea}`);
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In the code above, we created a function called findAreaOfSquare which takes in the side of the square as an argument and returns the calculated area. We then called this function with a fixed side value of 5, and printed the resulting squareArea to the console using console.log().

This is a simple example, but as a programmer, you can apply this formula and code structure to more complex scenarios involving squares or other shapes in TypeScript or other programming languages.