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How to check if a word is an English word with Python?
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The same mention applies here too: a lot faster when converted to a set: set(words.words())
– Iulius Curt
Sep 30 '14 at 19:41
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Java: method to get position of a match in a String?
...Found 'love' at index 2 - 5
General Rule :
Regex search left to right, and once the match characters has been used, it cannot be reused.
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Where is Java's Array indexOf?
I must be missing something very obvious, but I've searched all over and can't find this method.
13 Answers
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How do you round a floating point number in Perl?
...f perldoc -q round
Does Perl have a round() function? What about ceil() and floor()?
Trig functions?
Remember that int() merely truncates toward 0. For rounding to a certain number of digits, sprintf() or printf() is usually the easiest
route.
printf("%.3f", 3.1415926535); # prints 3...
How to compare objects by multiple fields
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You can implement a Comparator which compares two Person objects, and you can examine as many of the fields as you like. You can put in a variable in your comparator that tells it which field to compare to, although it would probably be simpler to just write multiple comparators.
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Is it possible to Pivot data using LINQ?
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GroupBy in Linq does not work the same as SQL. In SQL, you get the key and aggregates (row/column shape). In Linq, you get the key and any elements as children of the key (hierarchical shape). To pivot, you must project the hierarchy back into a row/column form of your choosing.
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Does const mean thread-safe in C++11?
...ad-safe in C++11. Is that true?
It is somewhat true...
This is what the Standard Language has to say on thread-safety:
[1.10/4]
Two expression evaluations conflict if one of them modifies a memory location (1.7) and the other one accesses or modifies the same memory location.
[1.10/21]
The executi...
Indexes of all occurrences of character in a string
...e final result, this seems to output -1 at the end an I don't quite understand why! thanks!!
– Trufa
Feb 17 '11 at 20:55
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How do I reverse a C++ vector?
...ed Jan 16 '12 at 8:46
Ivaylo StrandjevIvaylo Strandjev
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Get current time in milliseconds in Python?
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IMO I'd use floor and not round, but that's just me. If someone asks what the hour is, and it's 7:32, the number they probably want is 7, not 8.
– davr
Sep 9 '13 at 20:37
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