Anyone else think this is the worst possible test indication of understanding Let and Const and that the challenge here is understanding readLine()? Ha

function main() {

let r = readLine();
const PI = Math.PI;

// Print the area of the circle:
console.log(PI*r*r);
// Print the perimeter of the circle:
console.log(PI*2*r);

why is my code printing: 0

I'm curious as to why r**2 causes a runtime error

solution.js:29
    console.log(PI*(r**2));
                      ^
SyntaxError: Unexpected token *

Clean & correct

The challenge is called "Let and Const", but there's really no reason not to use const for both variables here. Let me know if you have any questions!

function main() {
    const PI = Math.PI;
    const r = parseFloat(readLine());

    console.log(PI * (r ** 2));
    console.log(2 * PI * r);

(From my HackerRank repo on GitHub.)

MY CODE let PI = Math.PI; let r =readLine();

// Print the area of the circle:
console.log(PI*r*r);
// Print the perimeter of the circle:
console.log( 2*PI*r);

MY OUTPUT 21.237166338267002 16.336281798666924 0

is it me or hackerrank

Typo in that error message about PI? Incorrectly, not correctly.

cant we do r^2

Tip: Use the function Math.pow() to figure out the value of x^y.

This works lol

function main() {
    // Write your code here. Read input using 'readLine()' and print output using 'console.log()'.
    const PI = Math.PI;
    let radius = readLine();
    let area = PI * (Math.pow(radius, 2));
    let perimeter = 2 * PI * radius;
    
    // Print the area of the circle:
    console.log(area);
    // Print the perimeter of the circle:
    console.log(perimeter);
    try {