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Why is an array not assignable to Iterable?
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Arrays can implem>me m>nt interfaces (Cloneable and java.io.Serializable). So why not Iterable? I guess Iterable forces adding an iterator m>me m>thod, and arrays don't implem>me m>nt m>me m>thods. char[] doesn't even override toString. Anyway, arrays of refere...
What's the difference between session.m>Me m>rge and session.SaveOrUpdate?
I notice som>me m>tim>me m>s with my parent/child objects or many-to-many relationships, I need to call either SaveOrUpdate or m>Me m>rge . Usually, when I need to call SaveOrUpdate , the exception I get on calling m>Me m>rge has to do with transient objects not being saved first.
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Return type of '?:' (ternary conditional operator)
...sion can be an lvalue or an rvalue. This is its value category. (This is som>me m>what of a simplification, in C++11 we have lvalues, xvalues and prvalues.)
In very broad and simple terms, an lvalue refers to an object in m>me m>mory and an rvalue is just a value that may not necessarily be attached to an obj...
Who is “us” and who is “them” according to Git?
After a Git rebase, and in other circumstances, you can find som>me m> files marked as deleted by us in the git status report. Who is us according to Git and why?
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Install NPM into hom>me m> directory with distribution nodejs package (Ubuntu)
... (or the chris-lea ppa for more recent releases) but install NPM to my hom>me m> directory.
8 Answers
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How to create materialized views in SQL Server?
I am going to design a DW and I heard about materialized views. Actually I want to create a view and it should update automatically when base tables are changed. Can anyone explain with an query example..
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How do I make and use a Queue in Objective-C?
...e;
- (void) enqueue:(id)obj;
@end
NSMutableArray+QueueAdditions.m
@implem>me m>ntation NSMutableArray (QueueAdditions)
// Queues are first-in-first-out, so we remove objects from the head
- (id) dequeue {
// if ([self count] == 0) return nil; // to avoid raising exception (Quinn)
id headObject...
How to use multiple argum>me m>nts for awk with a shebang (i.e. #!)?
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This seems to work for m>me m> with (g)awk.
#!/bin/sh
arbitrary_long_nam>me m>==0 "exec" "/usr/bin/gawk" "--re-interval" "-f" "$0" "$@"
# The real awk program starts here
{ print $0 }
Note the #! runs /bin/sh, so this script is first interpreted as a sh...
TreeMap sort by value
I want to write a comparator that will let m>me m> sort a TreeMap by value instead of the default natural ordering.
8 Answers
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Using @include vs @extend in Sass?
...Sass, I can't quite discern the difference between using @include with a mixin and using @extend with a placeholder class. Don't they amount to the sam>me m> thing?
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