LabEx
Log InJoin Free

Check for Leap Year

Beginner

This tutorial is from open-source community. Access the source code

Introduction

In this lab, we will explore the fundamental concepts of JavaScript programming. Through a series of exercises, you will learn how to write basic JavaScript programs, including variables, data types, functions, and control flow structures. By the end of the lab, you will have a solid foundation in JavaScript programming and be able to apply your knowledge to solve real-world problems.

This is a Guided Lab, which provides step-by-step instructions to help you learn and practice. Follow the instructions carefully to complete each step and gain hands-on experience. Historical data shows that this is a beginner level lab with a 100% completion rate. It has received a 100% positive review rate from learners.

Code for Checking Leap Year

To check if a given year is a leap year, follow these steps:

  1. Open the Terminal/SSH.
  2. Type node to start coding.
  3. Use the Date constructor and set the date to February 29th of the given year.
  4. Check if the month is equal to 1 using Date.prototype.getMonth().
  5. Use the following code snippet to check if a year is a leap year:
const isLeapYear = (year) => new Date(year, 1, 29).getMonth() === 1;

Here is an example of how to use this code:

isLeapYear(2019); // false
isLeapYear(2020); // true

Summary

Congratulations! You have completed the Check for Leap Year lab. You can practice more labs in LabEx to improve your skills.