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Why do I need Transaction in Hibernate for read-only operations?
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131
You might actually have reasons to mark transactions as read-only.
Transactions for reading m...
Why JSF saves the state of UI components on server?
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edited Sep 10 at 16:36
HoldOffHunger
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answe...
Get the length of a String
...alMenagerie = "Koala 🐨, Snail 🐌, Penguin 🐧, Dromedary 🐪"
println("unusualMenagerie has \(count(unusualMenagerie)) characters")
// prints "unusualMenagerie has 40 characters"
right from the Apple Swift Guide
(note, for versions of Swift earlier than ...
Check if value exists in Postgres array
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337
Simpler with the ANY construct:
SELECT value_variable = ANY ('{1,2,3}'::int[])
The right op...
How does having a dynamic variable affect performance?
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238
I've read dynamic makes the compiler run again, but what it does. Does it have to recompile ...
Hg: How to do a rebase like git's rebase
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233
VonC has the answer you're looking for, the Rebase Extension. It is, however, worth spending a...
What is the equivalent of MATLAB's repmat in NumPy
...h multiple dimensions and gives a similar result to matlab. (Numpy gives a 3d output array as you would expect - matlab for some reason gives 2d output - but the content is the same).
Matlab:
>> repmat([1;1],[1,1,1])
ans =
1
1
Python:
In [46]: a = np.array([[1],[1]])
In [47]: n...
When to use ' (or quote) in Lisp?
... passed to it are evaluated. This means you can write this:
(* (+ a 2)
3)
Which in turn evaluates (+ a 2), by evaluating a and 2. The value of the symbol a is looked up in the current variable binding set, and then replaced. Say a is currently bound to the value 3:
(let ((a 3))
(* (+ a 2)
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How do you set EditText to only accept numeric values in Android?
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edited Jul 17 at 2:33
Josh Correia
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answere...
Syntax behind sorted(key=lambda: …)
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Gaurang Tandon
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answered Jan 23 '12 at 2:26
EvanEvan
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