Welcome to the Treehouse Library
This is a sample catalog of all the courses we offer. Browse by topic or difficulty. Sign up today and get access to our entire library. Treehouse students get access to workshops, bonus content, conferences, and more.
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17 minWorkshop
JavaScript Booleans
Logic is an incredibly important part of programming. Typically languages will have a “boolean” data type with two values, “true” or “false”. In JavaScript, some of the behaviors that produce “truthiness” and “falsiness” can be confusing. In this workshop, you will be steeped in all of the different ways JavaScript takes into account booleans.
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18 minWorkshop
The JavaScript 'use strict' Statement
This workshop is all about JavaScript’s “use strict” statement. Recently you may have seen a curious little string “use strict”; appearing at the top of JavaScript files and within functions. This little statement causes the JavaScript interpreter to run in a strict variant. It can introduce a lot of breaking changes to your code, but in this workshop we’ll check out why this is a good thing!
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