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Keep only first n characters in a string?
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67
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std::next_permutation Implementation Explanation
... Generation in lexicographic order. There are numbers of such algorithm in Combinatorics, but this is the most classical one.
– chain ro
Mar 10 '15 at 2:59
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What is the difference between object keys with quotes and without quotes?
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126
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How to use shell commands in Makefile
I'm trying to use the result of ls in other commands (e.g. echo, rsync):
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How to specify a multi-line shell variable?
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set -e exits the shell if a command has an "unanticipated" non-zero exit status. By "unanticipated", I mean it runs in a context where you aren't specifically looking at its exit status. false by itself, for instance, would exit the shell. false || true...
jQuery UI “ $(”#datepicker“).datepicker is not a function”
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This was also my problem. I was using common assets within the rails asset pipeline and was both declaring jquery in my top-level meta file (application.js) AND had a jquery min file in my JS folder. Double-declare. I just removed the jquery declaration.
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correct way to use super (argument passing)
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Sometimes two classes may have some parameter names in common. In that case, you can't pop the key-value pairs off of **kwargs or remove them from *args. Instead, you can define a Base class which unlike object, absorbs/ignores arguments:
class Base(object):
def __init__(sel...
Do I need a content-type header for HTTP GET requests?
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65
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Scala: What is the difference between Traversable and Iterable traits in Scala collections?
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@RobinGreen I mean complying with the Traversable interface does not require keeping state, while complying with Iterator interface does.
– Daniel C. Sobral
Nov 6 '13 at 16:59
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What is offsetHeight, clientHeight, scrollHeight?
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my scrollHeight and clientHeight are both coming up as same despite the screen having more content and a scrollbar. Why?
– blankface
Mar 29 '18 at 3:24
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