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nil detection in Go
...amp;Config{
host: "myhost.com",
port: 22,
} // not nil
or
var config *Config // nil
Then you'll be able to check if
if config == nil {
// then
}
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What does the Java assert keyword do, and when should it be used?
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432
Assertions (by way of the assert keyword) were added in Java 1.4. They are used to verify the c...
How to define an enumerated type (enum) in C?
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Martin
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answered Jul 9 '09 at 8:32
RichieHindleRichieHindle
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Why are variables “i” and “j” used for counters?
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23 Answers
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How to prevent auto-closing of console after the execution of batch file
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edited Jul 30 '13 at 20:52
Rob Kielty
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answe...
Default behavior of “git push” without a branch specified
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12 Answers
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split string only on first instance of specified character
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edited Dec 6 '16 at 22:29
Chris Happy
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Get list of a class' instance methods
...TestClass itself can do.
class TestClass
def method1
end
def method2
end
def method3
end
end
TestClass.methods.grep(/method1/) # => []
TestClass.instance_methods.grep(/method1/) # => ["method1"]
TestClass.methods.grep(/new/) # => ["new"]
Or you can call methods (not instan...
Full screen background image in an activity
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223
There are several ways you can do it.
Option 1:
Create different perfect images for differen...
How can I get a view's current width and height when using autolayout constraints?
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247
The answer is [view layoutIfNeeded].
Here's why:
You still get the view's current width and...