May 2017
Intermediate to advanced
416 pages
21h 33m
English
Content preview from Nmap: Network Exploration and Security Auditing Cookbook - Second Edition
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Sets
Sets are commonly used for lookup tables, and because we can use hashkeys as indexes in Lua, lookups are executed in constant time and very efficiently:
set={} items = { "2013-02-01", "2013-02-02", "2013-02-03" } for _, key in pairs(items) doset[key]=true end --To look up a key, we simply access the field. if set["2013-02-01"] then print("Record found.") end
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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.
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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.