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In this article, we’re going to do a quick review of the basics of Swift that we’ve been looking at for the past 14 days.

In today’s lesson, we will look at Booleans, a data type that stores the result of logical conditions, and Interpolation, an important feature that we can use in String expressions.

Variables are created with var and constants are created with the keyword let. The value of variables marked as var can be changed anywhere in the program.