This is a quick post to show you how to open up external website links within a pop-up window (without adding extra non semantic mark-up to your HTML code). In the past I’ve heard a lot of people talk about adding either custom attributes or using existing attributes such as rel as a hook for your JavaScript code to find links that should open in a pop-up window. I disagree, and suggest using Regular Expressions (regexes) along with some procedural code to help figure this out for you (it will save you the time and hassle of adding this extra mark-up yourself).

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This is a post about some of my findings whilst trying to use Regular Expressions (Regex) to solve some problematic string issues. Along the way I learned something new about JavaScript’s text replacement methods that I didn’t know before and although it was very interesting to finally figure out, I was still slightly annoyed that it didn’t feature more prominently in more leading JavaScript books on the relevant sections of Regexes and text replacement using Regexes.

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