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Ruby's ||= (or equals) in JavaScript?
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153
Both are absolutely correct, but if you are looking for something that works like ||= in ruby. T...
JUnit test with dynamic number of tests
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answered Dec 11 '08 at 10:32
bruno condebruno conde
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How to get the instance id from within an ec2 instance?
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32 Answers
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What is the right way to check for a null string in Objective-C?
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397
As others have pointed out, there are many kinds of "null" under Cocoa/Objective C. But one f...
What is the effect of extern “C” in C++?
...u care about the technicalities, they are listed in section 7.5 of the C++03 standard, here is a brief summary (with emphasis on extern "C"):
extern "C" is a linkage-specification
Every compiler is required to provide "C" linkage
A linkage specification shall occur only in namespace scope
All funct...
How to configure socket connect timeout
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antiduh
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answered Jan 16 '11 at 23:21
FlappySocksFlappySocks
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PHP Fatal error: Cannot redeclare class
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answered Apr 2 '09 at 3:15
whichdanwhichdan
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How to go back in Eclipse?
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183
Press Alt+Left Arrow and Alt+Right Arrow like you would in a web browser.
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find() with nil when there are no records
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173
Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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Using Predicate in Swift
... ChuckChuck
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