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Most efficient way to determine if a Lua table is empty (contains no entries)?
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Your code is efficient but wrong. (Consider {[false]=0}.) The correct code is
if next(myTable) == nil then
-- myTable is empty
end
For maximum efficiency you'll want to bind next to a local variable, e.g.,
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local next = next
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... if next(...) ...
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Sublime Text 2 - Show file navigation in sidebar
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Free XML Formatting tool [closed]
...Config\tidy\TIDYCFG.INI,
find the entry [Tidy: Reindent XML] and add wrap:0 so that it looks like this:
[Tidy: Reindent XML]
input-xml: yes
indent:yes
wrap:0
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A generic list of anonymous class
In C# 3.0 you can create anonymous class with the following syntax
22 Answers
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Execute a terminal command from a Cocoa app
...ndardOutput = pipe;
An explanation is here: https://web.archive.org/web/20141121094204/https://cocoadev.com/HowToPipeCommandsWithNSTask
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List of lists into numpy array
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205
If your list of lists contains lists with varying number of elements then the answer of Ignacio...
PHP: How to check if image file exists?
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Virtual Serial Port for Linux
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answered Sep 16 '08 at 16:56
apenwarrapenwarr
10.1k55 gold badges4343 silver badges5858 bronze badges
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What do people find difficult about C pointers? [closed]
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answered Oct 26 '10 at 17:30
jkerianjkerian
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Why can I add named properties to an array as if it were an object?
...ay['B'] = "Berlin";
alert(myArray.length);
This won't display '2', but '0' - effectively, no elements have been added to the array, just some new properties added to the array object.
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