Learn regular expressions with RegExr

Posted to Online Applications  |  Tags:  |  Nathan Yau

RegExrLearning regular expressions tends to involve a lot of trial and error and can be confusing for newcomers. RegExr is an online tool that lets you learn more interactively. Add a body of text in one area and type various regular expressions in another. Matches are highlighted and errors are noted on the fly, which is kind of perfect. Even if you aren’t new to regular expressions, this is worth bookmarking for later.

Favorites

Who is Older and Younger than You

Here’s a chart to show you how long you have until you start to feel your age.

The Most Unisex Names in US History

Moving on from the most trendy names in US history, let’s look at the most unisex ones. Some names have …

Years You Have Left to Live, Probably

The individual data points of life are much less predictable than the average. Here’s a simulation that shows you how much time is left on the clock.

Jobs Charted by State and Salary

Jobs and pay can vary a lot depending on where you live, based on 2013 data from the Bureau of Labor Statistics. Here’s an interactive to look.