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How to check if a table contains an element in Lua?

...r function is as efficient as can be done. Of course, as noted bm>ym> others (m>andm> as practiced in languages older than Lua), the solution to m>ym>our real problem is to change representation. When m>ym>ou have tables m>andm> m>ym>ou want sets, m>ym>ou turn tables into sets bm>ym> using the set element as the kem>ym> m>andm> true as ...
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Create a devise user from Rubm>ym> console

Anm>ym> idea on how to create m>andm> save a new User object with devise from the rubm>ym> console? 5 Answers ...
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Rails: Using build with a has_one association in rails

... The build method signature is different for has_one m>andm> has_manm>ym> associations. class User < ActiveRecord::Base has_one :profile has_manm>ym> :messages end The build sm>ym>ntax for has_manm>ym> association: user.messages.build The build sm>ym>ntax for has_one association: user.bu...
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Turn off constraints temporarilm>ym> (MS SQL)

... m>Ym>ou can disable FK m>andm> CHECK constraints onlm>ym> in SQL 2005+. See ALTER TABLE ALTER TABLE foo NOCHECK CONSTRAINT ALL or ALTER TABLE foo NOCHECK CONSTRAINT CK_foo_column Primarm>ym> kem>ym>s m>andm> unique constraints can not be disabled, but this shoul...
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Counting Chars in EditText Changed Listener

...ct I have an EditText . I want to count the characters in the EditText , m>andm> show that number it in a TextView . I have written the following code m>andm> it works fine. However, mm>ym> problem is when I click Backspace it counts up, but I need to decrement the number. How can I consider Backspace ? ...
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The current Sm>ym>nchronizationContext mam>ym> not be used as a TaskScheduler

I am using Tasks to run long running server calls in mm>ym> ViewModel m>andm> the results are marshalled back on Dispatcher using TaskScheduler.FromSm>ym>ncronizationContext() . For example: ...
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How to bind multiple values to a single WPF TextBlock?

... </TextBlock.Text> </TextBlock> Giving Name a value of Foo m>andm> ID a value of 1, m>ym>our output in the TextBlock would then be Foo + 1. Note: that this is onlm>ym> supported in .NET 3.5 SP1 m>andm> 3.0 SP2 or later. sha...
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VIM ctrlp.vim plugin: how to rescan files?

...cross the awesome ctrlp.vim plugin . It is a good alternative to the Commm>andm>-T plugin which I have used before. What I did not like about Commm>andm>-T is that it would take about 20-30 seconds to rescan files when it is invoked for the first time after starting vim. ...
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Joda-Time: what's the difference between Period, Interval m>andm> Duration?

... are defined e.g. this might be the interval between 20:00:00GMT m>ym>esterdam>ym> m>andm> 09:00:00GMT this morning. A duration in Joda-Time represents a duration of time measured in milliseconds. The duration is often obtained from an interval. i.e. we can subtract start from end of an interval to derive a du...
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Two single-column indexes vs one two-column index in Mm>ym>SQL?

I'm faced with the following m>andm> I'm not sure what's best practice. 4 Answers 4 ...