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What does “default” mean after a class' function declaration?
...ult version of the respective constructor or assignment operator, i.e. the one which just performs the copy or move action for each member. This is useful because the move constructor isn't always generated by default (e.g. if you have a custom destructor), unlike the copy constructor (and likewise ...
What's the difference between CENTER_INSIDE and FIT_CENTER scale types?
...le above, would fit the entire container, because the sides are equal, and one axis is going to match the destination. With FIT_CENTER, if you had a box that was 5" x 10", and an image that was 5" x 7", the image would be proportionally scaled, so one of the axis's would fit, but would still center ...
When to use pip requirements file versus install_requires in setup.py?
... while requirements files to lead people towards things you know do work. One reason for this is that install_requires requirements are always checked, and cannot be disabled without actually changing the package metadata. So you can't easily try a new combination. Requirements files are only che...
Perl flags -pe, -pi, -p, -w, -d, -i, -t?
... command line by calling perldoc perlrun)
Going into the options briefly, one-by-one:
-p: Places a printing loop around your command so that it acts on each
line of standard input. Used mostly so Perl can beat the
pants off awk in terms of power AND simplicity :-)
-n: Places a non-printin...
How do you determine the ideal buffer size when using FileInputStream?
... generally larger than (or equal to) the disk block size. This means that one of your stream reads could result in multiple disk block reads - but those reads will always use a full block - no wasted reads.
Now, this is offset quite a bit in a typical streaming scenario because the block that is r...
Two way/reverse map [duplicate]
...se additions, but it'd be helpful to delete old key pairs when setting new ones (d['foo'] = 'baz' would need to additionally remove the bar key).
– beardc
Jan 29 '13 at 19:10
...
How does a language expand itself? [closed]
...ke a common API, to (debatably) many different "onion cores". They are the ones providing portability on top of non-portable non-standard backends.
– luk32
Jul 28 '14 at 16:09
81
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...ct extends another, and you want to list both the objects and the 'parent' one's properties.
– gotofritz
Apr 18 '12 at 10:26
3
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Is there a better way to run a command N times in bash?
...
for run in {1..10}
do
command
done
Or as a one-liner for those that want to copy and paste easily:
for run in {1..10}; do command; done
share
|
impro...
How to overload functions in javascript?
...type checking on arguments or required qty of arguments, you can just have one implementation of myFunc() that can adapt to what arguments were passed to it by checking the type, presence or quantity of arguments.
jQuery does this all the time. You can make some of the arguments optional or you ca...