Date Difference in Seconds

Introduction

In this lab, we will explore how to calculate the difference between two dates in seconds using JavaScript. The lab will provide a function that takes two Date objects as input and returns the difference between them in seconds. This can be useful in various applications, such as measuring time intervals or calculating the duration between two events. By the end of this lab, you will have a better understanding of how to work with dates in JavaScript and how to perform time calculations using built-in methods.

Skills Graph

Function to Calculate Date Difference in Seconds

To calculate the difference between two dates in seconds, follow these steps:

1. Open the Terminal/SSH and type node to start practicing coding.
2. Subtract the two Date objects and divide by the number of milliseconds in a second.
3. The result will be the difference between the two dates in seconds.

Here's a JavaScript function that does this calculation:

const getSecondsDiffBetweenDates = (dateInitial, dateFinal) =>
  (dateFinal - dateInitial) / 1000;

To use this function, pass in two Date objects as arguments, like this:

getSecondsDiffBetweenDates(
  new Date("2020-12-24 00:00:15"),
  new Date("2020-12-24 00:00:17")
); // 2

Summary

Congratulations! You have completed the Date Difference in Seconds lab. You can practice more labs in LabEx to improve your skills.