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Check for array not empty: any?
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251
any? isn't the same as not empty? in some cases.
>> [nil, 1].any?
=> true
>> [n...
How to execute ipdb.set_trace() at will while running pytest tests
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154
The error is raised because of py.test capturing output.
You should run py.test with -s option...
Difference between $(this) and event.target?
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305
There is a difference between $(this) and event.target, and quite a significant one. While this ...
I want to get the type of a variable at runtime
...esent, and can be passed around as a type parameter. For example:
val x = 5
def f[T](v: T) = v
f(x) // T is Int, the type of x
But depending on what you want to do, that won't help you. For instance, may want not to know what is the type of the variable, but to know if the type of the value is so...
XPath: select text node
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answered Feb 18 '11 at 5:45
Dimitre NovatchevDimitre Novatchev
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Cannot change column used in a foreign key constraint
...ill timeout or UNLOCK TABLES; is executed
http://dev.mysql.com/doc/refman/5.5/en/lock-tables.html
EDIT 2: OP asked for a more detailed explanation of the line "The type and definition of foreign key field and reference must be equal. This means your foreign key disallows changing the type of your ...
Why is parenthesis in print voluntary in Python 2.7?
...dited Feb 28 '19 at 21:08
user2357112 supports Monica
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answered May 31 '11 at 4:25
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parseInt(null, 24) === 23… wait, what?
...hat can be generated and NaN is returned.
js> parseInt(null, 36)
1112745
>>> reduce(lambda x, y: x * 36 + y, [(string.digits + string.lowercase).index(x) for x in 'null'])
1112745
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SQL RANK() versus ROW_NUMBER()
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Ritesh MengjiRitesh Mengji
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add a...
How to break out or exit a method in Java?
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