Learning 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.
Learn regular expressions with RegExr
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If We All Left to “Go Back Where We Came From”
Imagine that those with immigrants in their family tree left the country. Almost everyone, basically.
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.
The Most Gender-Switched Names in US History
We use some names mostly for boys and some mostly for girls, but then there is a small percentage that, over time, switched from one gender to another. Which names made the biggest switch?