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Javascript Regular Expressions

Javascript Regular Expressions

By : Loiane Groner, Gabriel Manricks
4 (7)
Buy this Book
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Javascript Regular Expressions

Javascript Regular Expressions

4 (7)
By: Loiane Groner, Gabriel Manricks
Buy this Book

Overview of this book

This book is ideal for JavaScript developers and programmers who work with any type of user entry data and want sharpen their skills to become experts.
Table of Contents (8 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Getting Started with Regex
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1. Getting Started with Regex
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It's all about patterns
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Regex in JavaScript
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Building our environment
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Summary
2
2. The Basics
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2. The Basics
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Defining vague matchers in Regex
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Defining ranges in Regex
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Defining multipliers in Regex
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Defining custom quantifiers
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Matching alternated options
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Creating a Regex for a telephone number
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Summary
3
3. Special Characters
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3. Special Characters
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Nonvisual constraints
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Defining nongreedy quantifiers
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Matching groups in Regex
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Summary
4
4. Regex in Practice
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4. Regex in Practice
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Regular expressions and form validation
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Validating fields
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Manipulating data
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Summary
5
5. Node.js and Regex
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5. Node.js and Regex
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Setting up Node.js
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Getting started with our application
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The anatomy of an Apache log file
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Summary
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A. JavaScript Regex Cheat Sheet
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A. JavaScript Regex Cheat Sheet
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Character classes
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Character sets
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Boundaries
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Grouping, alternation, and back reference
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Quantifiers
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JavaScript regular expressions methods
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Index
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Index

Setting up Node.js

Since we will be developing a Node.js application, the first step is to have Node.js installed. We can get it from http://nodejs.org/download/. Just follow the download instructions and we will have it set up on our computer.

Note

If this is your first time working with Node.js, please go through the tutorials at https://nodejs.org/.

To make sure we have Node.js installed, open the terminal application (Command Prompt, if you're using Windows), and type node –v. The Node.js version installed should be displayed as follows:

Setting up Node.js

We are now good to go!

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Javascript Regular Expressions
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