Explore JavaScript regular expressions: learn about regex history, create patterns with special characters, parse data, and match passwords/emails, gaining comprehensive text processing skills.

bite_size_js.tar.gz

RunNode12

Regular Expressions, also known as Regex, come in handy in a multitude of text processing scenarios. Regex defines a search pattern using symbols and allows you to find matches within strings. The applications of this span from software engineering to data science and beyond.

In this course, you will begin with an introduction to regex, its history, and various types of regular expressions. 

You will then learn how to create your own regular expressions using various techniques and special characters. In the latter half of the course, you will explore RegExp Objects, how to parse data, turn phrases into an array of strings, and lastly password and email pattern matching.

By the end of this course, you will be a regular expressions expert.

JavaScript Regular Expressions in Detail

## `lastIndex` property
Depending on the method you use, matches aren’t performed globally, but, instead one at a time on every execution of the method. If you’re working like this, then you might want to consider taking advantage of the `lastIndex` property of the object.
This property provides the index of where to start for the next match. In other words, it contains the position of the last match as well as the length of the match.


With this property, we can potentially capture sections of the string between one match and the following one. By doing this, you can capture said sections of the original string.

# `lastIndex` property
Depending on the method you use, matches aren’t performed globally, but, instead one at a time on every execution of the method. If you’re working like this, then you might want to consider taking advantage of the `lastIndex` property of the object.
This property provides the index of where to start for the next match. In other words, it contains the position of the last match as well as the length of the match.


With this property, we can potentially capture sections of the string between one match and the following one. By doing this, you can capture said sections of the original string.

Discover what you can do with the 'lastIndex' property of a RegExp object with the help of an example. 


The Beginning of Regular Expressions

The Anatomy of Regular Expressions

The RegExp Object

Thinking in Regular Expressions

Regular Expressions in the Wild

Wrapping Up

Index of the Last Match

`lastIndex` property