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Why can't non-default arguments follow default arguments?
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177
All required parameters must be placed before any default arguments. Simply because they are m...
inserting characters at the start and end of a string
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133
Strings are immutable so you can't insert characters into an existing string. You have to crea...
What is the equivalent of 'describe table' in SQL Server?
...ent RamdhanieVincent Ramdhanie
97.4k2222 gold badges132132 silver badges183183 bronze badges
2
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List all environment variables from the command line
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1381
Just do:
SET
You can also do SET prefix to see all variables with names starting with pref...
Changing case in Vim
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edited Feb 19 at 1:03
Community♦
111 silver badge
answered May 31 '10 at 21:34
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What does @@variable mean in Ruby?
... is in the comments at the end of the puts lines:
class Test
@@shared = 1
def value
@@shared
end
def value=(value)
@@shared = value
end
end
class AnotherTest < Test; end
t = Test.new
puts "t.value is #{t.value}" # 1
t.value = 2
puts "t.value is #{t.value}" # 2
x = Test.new...
What format string do I use for milliseconds in date strings on iPhone?
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211
It's SSS, per the Unicode Locale Data Markup Language spec.
"yyyy-MM-dd'T'HH:mm:ss.SSS"
More...
What is the purpose of the -nodes argument in openssl?
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124
The option -nodes is not the English word "nodes", but rather is "no DES". When given as an a...
How to iterate over the files of a certain directory, in Java? [duplicate]
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184
If you have the directory name in myDirectoryPath,
import java.io.File;
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File dir = new ...