Appendix A. Modernizr
Modernizr is an open source JavaScript library that allows us to test for individual features of HTML5 in our users’ browsers. Instead of testing just for a particular browser and trying to make decisions based on that, Modernizr allows us to ask specific questions like: “Does this browser support geolocation?” and receive a clear “yes” or “no” answer.
The first step to using Modernizr is to download it from the Modernizr site, at http://modernizr.com.
Once you have a copy of the script, you’ll need to include the script
file in your pages. We’ll add it to the head in this example:
<!doctype html> <html> <head> <meta charset="utf-8"> <title>My Beautiful Sample Page</title> <script src="modernizr-1.7.min.js"></script> </head> ...
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