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JavaScript Introducing the Practice

Reza Zandi
seal-mask
.a{fill-rule:evenodd;}techdegree
Reza Zandi
Full Stack JavaScript Techdegree Student 1,599 Points

easy peezy

// 1. Attach this file geometry.js to the index.html file

// 2. Create a function that calculates the area of a rectangle.
//    The function should accept the width and height as arguments
//    and return the area of that rectangle.
//    The area of a rectangle is the width * height


function areaOfRectangle(width,height){
      return width * height;
}


// 3. Create a function that calculates the volume of a rectangular prism.
//    The function should accept the width, height and length as arguments
//    and return the volume of that rectangular prism.
//    The volume of a rectangular prism is the width * height * length


function volmueOfRectangularPrism(width,height,length){
  return width * height * length;
}

// 4. Create a function that calculates the area of a circle.
//    The function should accept the radius of the circle as an argument
//    and return the area of that circle.
//    The area of a circle is the value of π * radius^


function areaOfCircle(radius){
  return 3.14 * Math.pow(radius,2);
}



// 5. Create a function that calculates the volume of a sphere.
//    The function should accept the radius of the sphere as an argument
//    and return the volume.
//    The volume of a circle is: 4/3 *  π * radius^3


function volumeOfSphere(radius){
  return 4/3 * 3.14 * Math.pow(radius,3);
}

// 6. Use console.log to test each function and output to the JavaScript console
//    Here are the values to test and the expected results
//    -- Area of rectangle that is 5 wide and 22 tall: 110
//    -- Volume of a rectangular prism that is 4.5 x 12.5 x 17.4: 978.7499999999999
//    -- Area of a circle that with a radius of 7.2: 162.8601631620949
//    -- Volume of a spehere with a radius of 7.2: 1563.4575663561109


console.log(areaOfRectangle(3,3,));
console.log(volmueOfRectangularPrism(3,3,3));
console.log(areaOfCircle(3));
console.log(volumeOfSphere(3));

2 Answers

You could use Math.PI instead of 3.14.

boi
boi
14,241 Points

You could....... solve it better. Sigh Sigh.

const areaOfRectangle = (width, height) =>  width * height;

const volmueOfRectangularPrism = (width, height, length) => width * height * length;

const areaOfCircle = radius => 3.14 * Math.pow(radius,2);

const volumeOfSphere = radius => 4/3 * Math.PI * Math.pow(radius,3);


console.log('', areaOfRectangle(3,3),'\n', volmueOfRectangularPrism(3,3,3),'\n', areaOfCircle(3),'\n', volumeOfSphere(3));