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Get index of array element faster than O(n)
...['a', 'b', 'c']
hash = Hash[array.map.with_index.to_a] # => {"a"=>0, "b"=>1, "c"=>2}
hash['b'] # => 1
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Access “this” from Java anonymous class
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answered Jul 5 '09 at 14:07
Mykola GolubyevMykola Golubyev
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Any reason why scala does not explicitly support dependent types?
... Bar }
defined class Foo
scala> val foo1 = new Foo
foo1: Foo = Foo@24bc0658
scala> val foo2 = new Foo
foo2: Foo = Foo@6f7f757
scala> implicitly[foo1.Bar =:= foo1.Bar] // OK: equal types
res0: =:=[foo1.Bar,foo1.Bar] = <function1>
scala> implicitly[foo1.Bar =:= foo2.Bar] // Not O...
How can I get stock quotes using Google Finance API?
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There's a whole API for managing portfolios. *Link removed. Google no longer provides a develope...
Need some clarification about beta/alpha testing on the developer console
...provide the update to some percentage of users we currently have. Suppose 100 users are there and you rollout for 40% then only 40 users can update the app and after you confirm the app is working perfectly (using crash reports or reviews) then make it available for everyone.
4. Pause Track - See ea...
Why there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT clause?
... has been lifted in recent versions of MySQL:
Changes in MySQL 5.6.5 (2012-04-10, Milestone 8)
Previously, at most one TIMESTAMP column per table could be
automatically initialized or updated to the current date and time.
This restriction has been lifted. Any TIMESTAMP column definitio...
Executing elements inserted with .innerHTML
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Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...ited Jul 19 '17 at 8:21
user247702
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answered Jan 13 '10 at 17:30
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Random number generation in C++11: how to generate, how does it work? [closed]
...uppose you have a simple random number generator that generate the numbers 0, 1, ..., 10 each with equal probability (think of this as the classic rand()). Now you want a random number in the range 0, 1, 2, each with equal probability. Your knee-jerk reaction would be to take rand() % 3. But wait, t...
Calling static generic methods
...e8/html/…
– Joanis
Nov 27 '14 at 20:07
3
A different way to specify the type of E would be to d...