Book Image

The JavaScript Workshop

By : Joseph Labrecque, Jahred Love, Daniel Rosenbaum, Nick Turner, Gaurav Mehla, Alonzo L. Hosford, Florian Sloot, Philip Kirkbride
Book Image

The JavaScript Workshop

By: Joseph Labrecque, Jahred Love, Daniel Rosenbaum, Nick Turner, Gaurav Mehla, Alonzo L. Hosford, Florian Sloot, Philip Kirkbride

Overview of this book

If you're looking for a programming language to develop flexible and efficient apps, JavaScript is a great choice. However, while offering real benefits, the complexity of the entire JavaScript ecosystem can be overwhelming. This Workshop is a smarter way to learn JavaScript. It is specifically designed to cut through the noise and help build your JavaScript skills from scratch, while sparking your interest with engaging activities and clear explanations. Starting with explanations of JavaScript's fundamental programming concepts, this book will introduce the key tools, libraries and frameworks that programmers use in everyday development. You will then move on and see how to handle data, control the flow of information in an application, and create custom events. You'll explore the differences between client-side and server-side JavaScript, and expand your knowledge further by studying the different JavaScript development paradigms, including object-oriented and functional programming. By the end of this JavaScript book, you'll have the confidence and skills to tackle real-world JavaScript development problems that reflect the emerging requirements of the modern web.
Table of Contents (17 chapters)

Regexes in Detail

In the upcoming sections, the following sample phrase is used for illustration:

  "The ships were loaded with all these belongings of the mother"

This phrase will be used to demonstrate various regex concepts, including literal characters, word boundaries, character classes, and others.

Literal Characters

The simplest regex is one of more literal characters, such as the. This indicates a pattern that is a match if the t character is immediately followed by h and finally an e character. This expression would have four matches in the sample phrase: the initial the, the second to last word, the, the in the word these, and the sequence of the as part of the word mother.

Special Characters, Anchors, and Escaping

If a regex only had literals, its usefulness would be limited. In most cases, you do not want to only match literals; therefore, regexes have a number of characters that have special meanings. These are also known as metacharacters...