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What do the plus and minus signs mean in Objective-C next to a method?
...in Objective C is like this:
NSNumber *myNumber = [NSNumber numberWithInt:123];
which is calling the 'numberWithInt' class method of the NSNumber class, which is a 'factory' method (i.e. a method that provides you with a 'ready made instance' of an object).
Objective C also allows the creation o...
Select by partial string from a pandas DataFrame
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df[df['value'].astype(str).str.contains('1234.+')] for filtering out non-string-type columns.
– François Leblanc
Feb 13 '18 at 20:22
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How do you clear a slice in Go?
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123
It all depends on what is your definition of 'clear'. One of the valid ones certainly is:
sli...
Extract elements of list at odd positions
...it be enumerate(L) instead of enumerate(items) ?
– ab123
May 24 '18 at 5:38
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Error handling in Bash
...ore on Github: github.com/Privex/shell-core
– Someguy123
Oct 8 '19 at 4:39
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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
...AS j USING(userid)
JOIN useraccounts AS us USING(userid)
WHERE j.jobid = 123
This is completely ambiguous. I put a UserID column in both Companies and user tables and there's no complaint. What if the UserID column in companies is the ID of the last person to modify that row?
I'm serious, Can ...
asp.net mvc put controllers into a separate project
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Craig StuntzCraig Stuntz
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Can inner classes access private variables?
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123
An inner class is a friend of the class it is defined within.
So, yes; an object of type Outer...
Java Generics (Wildcards)
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123
In your first question, <? extends T> and <? super T> are examples of bounded wild...
What is Gradle in Android Studio?
...dited Nov 16 '15 at 4:38
hichris123
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answered Jan 19 '14 at 9:14
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