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What is a lambda expression in C++11?
What is a lambda expression in C++11? When would I use one? What class of problem do they solve that wasn't possible prior to their introduction?
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How do I combine two data-frames based on two columns? [duplicate]
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See the documentation on ?merge, which states:
By default the data frames are merged on the c...
Python to print out status bar and percentage
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19 Answers
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How to pass variable number of arguments to a PHP function
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If you have your arguments in an array, you might be interested by the call_user_func_array fu...
What is the difference between float and double?
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Make a negative number positive
...ers. However, I want any negatives numbers to be treated as positives. So (1)+(2)+(1)+(-1) should equal 5.
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i18n Pluralization
I want to be able to translate pluralized strings in i18n in rails. A string can be :
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Decimal number regular expression, where digit after decimal is optional
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Append values to a set in Python
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keep.update(yoursequenceofvalues)
e.g, keep.update(xrange(11)) for your specific example. Or, if you have to produce the values in a loop for some other reason,
for ...whatever...:
onemorevalue = ...whatever...
keep.add(onemorevalue)
But, of course, doing it in bulk with a s...
Is there any particular difference between intval and casting to int - `(int) X`?
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intval() can be passed a base from which to convert. (int) cannot.
int intval( mixed $var [,...