November 2017
Beginner
316 pages
6h 40m
English
Content preview from Learning Julia
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.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.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.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.
Miscellaneous performance tweaks
Let's discuss some other tips for performance enhancements in Julia code:
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Always try breaking a big function with multiple definitions (aka compound functions) into smaller functions with a clearer and more modular approach.
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Write functions that must always return the value of a given data type, that is, their return type should always be one and shouldn't change with the change in input. A quick example of this can be as follows:
julia> function check_bigger(x:: Int64, y::Int64) if x < y return y elseif y < x return x else return "Both are equal" end end WARNING: Method definition check_bigger(Int64, Int64) in module Main at REPL[7]:2 overwritten at REPL[15]:2. check_bigger (generic function with 1 ...
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