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Javascript: How to check if a string is empty? [duplicate]
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150
I check length.
if (str.length == 0) {
}
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What is a semaphore?
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404
Think of semaphores as bouncers at a nightclub. There are a dedicated number of people that are...
iOS 7 - Status bar overlaps the view
...cifically made to resolve this issue. In the storyboard, I moved my views 20 pixels down to look right on iOS 7 and in order to make it iOS 6 compatible, I changed Delta y to -20.
Since my storyboard is not using auto-layout, in order to resize the height of views properly on iOS 6 I had to se...
Key hash for Android-Facebook app
...l from Google code (If you have a 64 bit machine you must download openssl-0.9.8e X64 not the latest version)
Extract it. create a folder- OpenSSL in C:/ and copy the extracted code here.
detect debug.keystore file path. If u didn't find, then do a search in C:/ and use the Path in the command in ne...
List files with certain extensions with ls and grep
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340
Why not:
ls *.{mp3,exe,mp4}
I'm not sure where I learned it - but I've been using this.
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When should we call System.exit in Java
In Java, What is the difference with or without System.exit(0) in following code?
10 Answers
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Getting attributes of a class
... a:not(inspect.isroutine(a)))
>>> [a for a in attributes if not(a[0].startswith('__') and a[0].endswith('__'))]
[('a', '34'), ('b', '12')]
...and the more complicated of which can include special attribute name checks or even metaclasses ;)
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RVM is not a function, selecting rubies with 'rvm use …' will not work
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answered May 30 '14 at 20:42
BroiSatseBroiSatse
38k77 gold badges4848 silver badges7777 bronze badges
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How do I add the contents of an iterable to a set?
...n add elements of a list to a set like this:
>>> foo = set(range(0, 4))
>>> foo
set([0, 1, 2, 3])
>>> foo.update(range(2, 6))
>>> foo
set([0, 1, 2, 3, 4, 5])
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Best way to do multi-row insert in Oracle?
...nsert into pager (PAG_ID,PAG_PARENT,PAG_NAME,PAG_ACTIVE)
select 8000,0,'Multi 8000',1 from dual
union all select 8001,0,'Multi 8001',1 from dual
The thing to remember here is to use the from dual statement.
(source)
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