JavaScript: Calculate the volume of a Cylinder

JavaScript Object: Exercise-5 with Solution

Cylinder Volume

Write a JavaScript program to get the volume of a cylindrical with four decimal places using object classes.
Volume of a cylinder : V = πr²h
where r is the radius and h is the height of the cylinder.

Sample Solution:

JavaScript Code:

function Cylinder(cyl_height, cyl_diameter) {
  this.cyl_height = cyl_height;
  this.cyl_diameter = cyl_diameter;
}

Cylinder.prototype.Volume = function () {
  var radius = this.cyl_diameter / 2;
  return this.cyl_height * Math.PI * radius * radius;
};

var cyl = new Cylinder(7, 4);
// Volume of the cylinder with four decimal places.
console.log('volume = ' + cyl.Volume().toFixed(4));

Output:

volume = 87.9646

Flowchart:

Live Demo:

See the Pen javascript-object-exercise-5 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript class for a cylinder that includes methods to calculate its volume and surface area.
• Write a JavaScript function that accepts radius and height as inputs and returns the cylinder volume rounded to four decimal places.
• Write a JavaScript function that validates input values for the radius and height before computing the volume.
• Write a JavaScript function that compares the volume of a cylinder with that of a cone having the same base and height.

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