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How to access random item in list?
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@B.ClayShannon No. The upperbound in the Next(max) call is exclusive.
– Mehrdad Afshari
Feb 12 '16 at 3:20
1
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How to use custom packages
...something very obvious but I cannot find much information about this. Basically, I have these two files in the same folder:
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Rails 4: List of available datatypes
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Here are all the Rails 4 (ActiveRecord migration) datatypes:
:binary
:boolean
:date
:datetime
:decimal
:float
:integer
:bigint
:primary_key
:references
:string
:text
:time
:timestamp
Source: http://api.rubyonrails.org/classes/Acti...
`require': no such file to load — mkmf (LoadError)
I was trying to install rails on Ubuntu Natty Narwhal 11.04, using ruby1.9.1.
10 Answers
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Pick a random value from an enum?
...only thing I would suggest is caching the result of values() because each call copies an array. Also, don't create a Random every time. Keep one. Other than that what you're doing is fine. So:
public enum Letter {
A,
B,
C,
//...
private static final List<Letter> VALUES =
Collec...
Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?
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The compiler can't generally transform
for (int c = 0; c < arraySize; ++c)
if (data[c] >= 128)
for (int i = 0; i < 100000; ++i)
sum += data[c];
into
for (int c = 0; c < arraySize; ++c)
if (data[c] >= 12...
Expanding tuples into arguments
...rtelli
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8
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List vs List
...ype of List<Object>? - see, for example, stackoverflow.com/questions/3246137/…
– Tom Hawtin - tackline
Mar 21 '12 at 18:29
2
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Best way to make Django's login_required the default
...p, the vast majority of which requires a login to access. This means that all throughout our app we've sprinkled:
9 Answer...
How do I get an animated gif to work in WPF?
...und so far:
https://github.com/XamlAnimatedGif/WpfAnimatedGif
You can install it with NuGet
PM> Install-Package WpfAnimatedGif
and to use it, at a new namespace to the Window where you want to add the gif image and use it as below
<Window x:Class="MainWindow"
xmlns="http://schemas.micr...