- #PHONE NUMBER REGEX HOW TO#
- #PHONE NUMBER REGEX CODE#
- #PHONE NUMBER REGEX SERIES#
- #PHONE NUMBER REGEX ZIP#
It should also include a code snippet of that particular component and some examples that meet the requirements of that component. After you’ve finished your walkthrough, you can remove any sections that you didn’t use.Įach section that describes a component should include more than just one sentence explaining what it does. Note: The regular expression that you choose might not include all of the components outlined in the starter code. Be sure to rename the template to a unique name that describes your tutorial. The table of contents should link to sections of the tutorial that describe the functionality of each component in the regex. The starter code is a template with a title, introductory paragraph, summary, and table of contents. md file extension to the file name so that your Markdown renders correctly. Important: Make sure to create a public gist and add the.
#PHONE NUMBER REGEX HOW TO#
You can also watch this video on how to use gists. Gists can include code, images, links, and anything else you can include in a README.Īfter you’ve downloaded the starter code, learn how to create a gist. It functions just like a repository, and you’ll use Markdown to create it, just as you do with your READMEs. It’s also an ideal way to demonstrate a technique, teach a principle, or show off a solution. GitHub describes a gist as a simple way to share code snippets with others. Instead of creating a repository, you’ll publish a GitHub gist. You can choose one of the following regular expressions or you can choose one that you found on your own (with the exception of the one that is covered in the Regex Tutorial: Matching a Username: Once you have a better understanding of what these different parts of a regular expression do, you’ll need to explain what they do for a specific regex. Feel free to do your own research to find one that can help you complete this assignment. If you need any additional help, there are many resources on the web. They are also frequently used to validate input.įor example, the following regular expression can be used to verify that user input is a valid email component of this regex has a unique responsibility to make sure that a user enters an email address that begins with an unspecified number of characters preceding the symbol, followed by a domain.īefore you get started, watch this introduction to regular expressions video and read Regex Tutorial: Matching a Username to learn how to identify the different components that make up a regex. When included in code or search algorithms, regular expressions can be used to find certain patterns of characters within a string, or to find and replace a character or sequence of characters within a string. THEN I find a section about the author and a link to the author’s GitHub profile What Is a Regex?Ī regex, which is short for regular expression, is a sequence of characters that defines a specific search pattern. THEN I find a detailed explanation of what a specific component of the regex does WHEN I read through each section of the tutorial THEN I am taken to the corresponding sections of the tutorial WHEN I click on the links in the table of contents ^\(?: Means that the phone number may begin with an optional “(“.THEN I see a descriptive title and introductory paragraph explaining the purpose of the tutorial, a summary describing the regex featured in the tutorial, a table of contents linking to different sections that break down each component of the regex and explain what it does, and a section about the author with a link to the author’s GitHub profile Let’s divide this regular expression in smaller fragments to make is easy to understand.
Let’s begin by looking at the JavaScript code.įunction validatePhoneNumber(elementValue))$/ In today’s post I’ll show you how to use JavaScript regular expression to validate U.S phone number.Īlthough in this article we are discussing U.S phone number format I am sure this can be applied to other phone number formats with little or no change.
#PHONE NUMBER REGEX ZIP#
Previously we talked about validating email, Social Security number and zip code using JS regex.
#PHONE NUMBER REGEX SERIES#
Continuing with our JavaScript regular expression series today we will discuss JavaScript regular expression to validate U.S phone number.
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