In today's exercise I look at how the source code works for Underscore's mapObject function. I still need to figure out what the hell _.cb does. One step at a time.
Tutorial: How To Create a Range Of Numbers with Underscore.js (includes video)
With Underscore's range function, you can easily generate a range of numbers customized to your liking. You could do the same thing with a basic Javascript for loop, but _.range is a faster and easier to use alternative.
Read on for a tutorial on how to use range along with a video walkthrough of the source code.
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