Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Professional JavaScript

You're reading from   Professional JavaScript Fast-track your web development career using the powerful features of advanced JavaScript

Arrow left icon
Product type Paperback
Published in Sep 2019
Publisher
ISBN-13 9781838820213
Length 664 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Authors (4):
Arrow left icon
Hugo Di Francesco Hugo Di Francesco
Author Profile Icon Hugo Di Francesco
Hugo Di Francesco
Siyuan Gao Siyuan Gao
Author Profile Icon Siyuan Gao
Siyuan Gao
Vinicius Isola Vinicius Isola
Author Profile Icon Vinicius Isola
Vinicius Isola
Philip Kirkbride Philip Kirkbride
Author Profile Icon Philip Kirkbride
Philip Kirkbride
Arrow right icon
View More author details
Toc

Table of Contents (12) Chapters Close

Preface 1. JavaScript, HTML, and the DOM FREE CHAPTER 2. Node.js and npm 3. Node.js APIs and Web Scraping 4. RESTful APIs with Node.js 5. Modular JavaScript 6. Code Quality 7. Advanced JavaScript 8. Asynchronous Programming 9. Event-Driven Programming and Built-In Modules 10. Functional Programming with JavaScript Appendix

Math, Date, and String

When building complex applications using JavaScript, there will be times when you need to deal with string manipulation, math calculations, and dates. Luckily, JavaScript has several built-in methods for this type of data. In the following exercises, we will go over the ways we can utilize these in our applications.

To create a new Date object, use the following command:

const currentDate = new Date();

This will point to the current date.

To create a new string, use the following command:

const myString = 'this is a string';

To use the Math module, we can use the Math class:

const random = Math.random();

Exercise 56: Using String Methods

In this exercise, we will go over some of the ways we can work with strings more easily in our applications. String manipulation and building have always been complex tasks in other languages. In JavaScript, by using String methods, we can create, match, and manipulate strings with ease. In...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image