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Looping over arrays, printing both index and value
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329
You would find the array keys with "${!foo[@]}" (reference), so:
for i in "${!foo[@]}"; do
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Days between two dates? [duplicate]
...;> a = datetime(2011,11,24,0,0,0)
>>> b = datetime(2011,11,17,23,59,59)
>>> a-b
datetime.timedelta(6, 1)
>>> (a-b).days
6
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Set breakpoint in C or C++ code programmatically for gdb on Linux
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edited Jun 17 '15 at 14:39
Antoine Pietri
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answered Dec 1 '10 at ...
Unique Constraint in Entity Framework Code First
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edited Dec 13 '10 at 2:31
answered Dec 13 '10 at 2:25
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What exactly does += do in python?
...r
return self.num
>>> a = Adder(2)
>>> a += 3
in __iadd__ 3
>>> a
5
Hope this helps.
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Calling a function of a module by using its name (a string)
...attr(foo, 'bar')
result = method_to_call()
You could shorten lines 2 and 3 to:
result = getattr(foo, 'bar')()
if that makes more sense for your use case.
You can use getattr in this fashion on class instance bound methods, module-level methods, class methods... the list goes on.
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Pass in an array of Deferreds to $.when()
...use Function.prototype.apply, so in this case you need:
$.when.apply($, my_array).then( ___ );
See http://jsfiddle.net/YNGcm/21/
In ES6, you can use the ... spread operator instead:
$.when(...my_array).then( ___ );
In either case, since it's unlikely that you'll known in advance how many form...
Difference Between Cohesion and Coupling
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edited Oct 18 '17 at 21:31
Connor Low
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answered Jun 21 '10 at 14:...
What is the difference between is_a and instanceof?
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Update
As of PHP 5.3.9, the functionality of is_a() has changed. The original answer below states that is_a() must accept an Object as the first argument, but PHP versions >= 5.3.9 now accept an optional third boolean argument $allow_string ...
How to reset sequence in postgres and fill id column with new data?
...ws. I need to reset sequence and reassign id column with new values (1, 2, 3, 4... etc...). Is any easy way to do that?
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