This tutorial will teach you how to match and remove all the numbers in a string using RegEx.
Master variable interpolation and concatenation, the two ways to add a variable to a string in PHP, and learn when to use each.
This tutorial will teach you how to redirect the user to a new URL while preserving and/or adding URL parameters.
What you need to know about SSL certificates and 301 redirects — including whether or not you need one for your redirected domain.
Are you thinking about buying a new laptop? Not sure what size screen to get? We’ve written this guide to help.
So, you want to know how to determine a variable’s data type in PHP? Read on; this tutorial will show you how!
Are you wondering about the best way to get the domain name from the current URL? Read on; this tutorial will help.
Learn how to check if a string contains a given substring in PHP, with or without case sensitivity — and more.
Not sure how to check for null values in PHP? This tutorial will show you the two best ways to do it, with code examples and without the B.S.
Learn how to embed the YouTube video player without allowing it to drop cookies on users’ devices.
Learn how to get the current URL of the web page, with or without URL parameters and URL fragments.
Yes, you can run Python scripts in WordPress. You can either host the script on your server and use exec() or host it in the cloud and use wp_remote_get().
Learn the ins and outs of localStorage, the persistent Storage object that you can use for storing data in the browser.
Learn the ins and outs of sessionStorage, the session-scoped Storage object that you can use for temporarily storing data in the browser.
Need to print multiple expressions in Python? Can’t make up your mind between the comma and the plus operator? This guide will help.
Learn how to open other programs in Python and keep them running in parallel to your script.
No, you can’t. But you can manipulate strings until you get to the value you want. This tutorial will show you how.
Learn how to comment out PHP code and find out the most common mistakes to watch out for.
Learn how to comment out CSS code, what to watch out for, and how to not have it slow down the performance of your web pages.
Learn how to upload a file to a form with Selenium IDE. Wink wink: It’s easier to do than you probably think.
Did Selenium ID record all the clicks, but one or more of your click commands are not working? We’ve written this guide to help.
Get today’s date in Selenium IDE and format it like a boss. This tutorial will show you how, with code snippets you can reuse and screenshots.
Not sure how to verify a web page’s title in Selenium IDE? We’ve got you! This tutorial will walk you through the steps, with screenshots.
Do you need to check for two or more values instead of one in your Selenium IDE test cases? Here’s how to make that happen.
Need to submit a form as part of your test case? Not sure which method to use? We’ve written this guide to help.
Not sure about the difference between the close() and the quit() method in Selenium WebDriver? Here’s what you need to know.
Need to make Selenium IDE wait for a while in the middle of your test case? These are the best ways to make it happen.
So you want to know how to iterate on the items in a list in Selenium IDE? This tutorial will help you figure it out.
New to HTML? Wondering if and why you need the DOCTYPE declaration? We explain!
Trying to figure out how to echo an iframe in your PHP code? Here are the three ways to get it done, with code samples.
Transform your WordPress site without spending a penny with any of these highly customizable free themes, plus some useful free plugins.
You can work on your WordPress site without going live by changing your privacy settings, using plugins, or working offline on a device.
Coding is for everyone! Learn how to get started with coding, what resources are available to help you, and how to find a community of like-minded peers.
Python is a great language for beginners and experienced developers alike. Learn the basics and get started on your journey.
Learn how to convert a NodeList object to an Array in this no-B.S. tutorial.
Does your string contain ___? There’s a simple way to check. Here’s how to search strings for substrings like a pro.
Tired of having a Gmail or Outlook email address? Want something that looks more… professional? Learn how to create a custom email address.
Wondering whether you need an index.html file on your web server or not? We’ve written this guide to help you find out.
Leaving comments in your HTML documents makes it easier to edit and debug your code. But does it also have a negative effect on the speed of your website?
Is it possible to mix HTML markup and CSS style sheets in the same document? And if the answer is yes, when is it a good idea to do so?
Not sure if learning HTML and CSS is worth your time? We wrote this guide to help you decide.
Did you know you can comment out one or multiple lines of code in your HTML document? Read on to find out how.
Every web project, no matter how big or small, starts with an index.html file. Start yours with this template.
You’ve heard the term “URL” many times. Now, you want to know what it really means.
Learn about the best practices for naming your HTML elements, and the most common conventions for doing so.
Wondering whether the index.html page of your single-page web app gets cached by browsers? We’ve written this guide to help.
Wondering why your HTML code isn’t working? Try this four-step checklist, it might just help!
Learn about the two ways to identify whether an HTML document is written in HTML5 or not.
Do you want to know if tags and attributes in HTML are case insensitive? We have the answer for you, so read on.
Wondering which web development language to start with? We’ve written this no-B.S. guide to help.
Learn how to preview an HTML document in your browser, as well as how to view the source code of that document in your text editor.
Learn about the three ways to make text bold in HTML, and the right time and place to each each.
Wondering if writing CSS style sheets is harder than HTML markup? We have the answer for you, and more.