November 2017
Beginner
316 pages
6h 40m
English
Content preview from Learning Julia
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Understanding the Boolean data type
Bool is a logical data type that is widely used. It is assigned and can be true or false:
julia> 1 > 2falsejulia> typeof(ans)Bool
Unlike other languages, 0, NULL, or empty strings are not treated as false in Julia.
Example:
julia> if 0 println("hello")end
The preceding command will throw an error:
TypeError: non-boolean (Int64) used in boolean context Stacktrace: [1] include_string(::String, ::String) at ./loading.jl:515
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.