JavaScript Fundamentals | Programming Tutorials

Introduction

In this lab, we will explore some fundamental concepts of JavaScript programming. Through a series of exercises and challenges, you will learn how to work with variables, data types, functions, and control structures. By the end of the lab, you will have a solid foundation in JavaScript and be able to apply your knowledge to real-world projects.

Skills Graph

%%%%{init: {'theme':'neutral'}}%%%% flowchart RL javascript(("JavaScript")) -.-> javascript/BasicConceptsGroup(["Basic Concepts"]) javascript/BasicConceptsGroup -.-> javascript/variables("Variables") javascript/BasicConceptsGroup -.-> javascript/data_types("Data Types") javascript/BasicConceptsGroup -.-> javascript/arith_ops("Arithmetic Operators") javascript/BasicConceptsGroup -.-> javascript/comp_ops("Comparison Operators") subgraph Lab Skills javascript/variables -.-> lab-28243{{"Check if Date Is Before Another Date"}} javascript/data_types -.-> lab-28243{{"Check if Date Is Before Another Date"}} javascript/arith_ops -.-> lab-28243{{"Check if Date Is Before Another Date"}} javascript/comp_ops -.-> lab-28243{{"Check if Date Is Before Another Date"}} end

How to Check if One Date is Before Another in JavaScript

To check if one date comes before another in JavaScript, you can use the less than operator (<). Here's an example function that takes in two dates and returns a boolean value indicating whether the first date comes before the second:

const isBeforeDate = (dateA, dateB) => dateA < dateB;

You can use this function to check if a specific date comes before another date by passing in two Date objects as arguments. For example:

isBeforeDate(new Date(2010, 10, 20), new Date(2010, 10, 21)); // true

Summary

Congratulations! You have completed the Check if Date Is Before Another Date lab. You can practice more labs in LabEx to improve your skills.