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What does “abstract over” mean?
... numbers under a single symbol ns:
def sumOf(ns: List[Int]) = ns.foldLeft(0)(_ + _)
And we don't particularly care that it's a List either. List is a specific type constructor (takes a type and returns a type), but we can abstract over the type constructor by specifying which essential characteri...
Do I need to store the salt with bcrypt?
... ircmaxell
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answered Nov 10 '08 at 4:33
Greg HewgillGreg Hewgill
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Format string, integer with leading zeros
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Use the format string "img_%03d.jpg" to get decimal numbers with three digits and leading zeros.
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How can I find the first occurrence of a sub-string in a python string?
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answered Jul 11 '10 at 4:50
mechanical_meatmechanical_meat
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What is “(program)” in Chrome debugger’s profiler?
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answered Oct 3 '10 at 0:06
Nick Craver♦Nick Craver
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Delete sql rows where IDs do not have a match from another table
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answered Aug 1 '10 at 23:23
OMG PoniesOMG Ponies
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Update or Insert (multiple rows and columns) from subquery in PostgreSQL
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edited Sep 17 '10 at 16:14
Milen A. Radev
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Break when exception is thrown
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You are able to define the precise list of Exception you want to have a breakpoint on, even if ...
What's the need of array with zero elements?
...lloc(sizeof(*var) + extra);
You can access var->data with indices in [0, extra). Note that sizeof(struct something) will only give the size accounting for the other variables, i.e. gives data a size of 0.
It may be interesting also to note how the standard actually gives examples of mallocin...
How do I show a MySQL warning that just happened?
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SHOW WARNINGS is the only method I'm aware of, but you have to run it immediately after a query...