大约有 40,000 项符合查询结果（耗时：0.0601秒） [XML]
Reshaping data.frame from wide to long format
I have some trouble to convert my data.frame from a wide table to a long table.
At the moment it looks like this:
9 Answe...
Ruby: How to iterate over a range, but in set increments?
...
See http://ruby-doc.org/core/classes/Range.html#M000695 for the full API.
Basically you use the step() method. For example:
(10..100).step(10) do |n|
# n = 10
# n = 20
# n = 30
# ...
end
...
drag drop files into standard html file input
...ntDefault' called
// in order for the 'drop' event to register.
// See: https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Drag_operations#droptargets
dropContainer.ondragover = dropContainer.ondragenter = function(evt) {
evt.preventDefault();
};
dropContainer.ondrop = function(evt) ...
Easiest way to check for an index or a key in an array?
Using:
7 Answers
7
...
Unlimited Bash History [closed]
...-------------
# Undocumented feature which sets the size to "unlimited".
# http://stackoverflow.com/questions/9457233/unlimited-bash-history
export HISTFILESIZE=
export HISTSIZE=
export HISTTIMEFORMAT="[%F %T] "
# Change the file location because certain bash sessions truncate .bash_history file upo...
Writing outputs to log file and console
In Unix shell, I have a env file ( env file defines the parameters required for running the user script like log file name and path, redirect outputs and errors to log file, database connection details, etc ) which redirects all the outputs ( echo messages ) and errors to the log file from the execu...
How do I enable gzip compression when using MVC3 on IIS7?
...ar right.
Note: (As pointed out in the comments) You need to ensure that Http Dynamic Compression is installed otherwise setting doDynamicCompression="true" will not have any effect. The quickest way to do this is:
Start > Type optionalfeatures (this is the quickest way to get to the "Turn Wi...
Do something if screen width is less than 960 px
...{
alert('More than 960 resize');
}
}
});
I tried http://api.jquery.com/off/ with no success so I went with the eventFired flag.
share
|
improve this answer
|
...
How do I view the SQLite database on an Android device? [duplicate]
... card to the place where your ADB exist.
Install Firefox SQLite Manager: https://addons.mozilla.org/en-US/firefox/addon/sqlite-manager/
Open Firefox SQLite Manager (Tools->SQLite Manager) and open your database file from step 3 above.
Enjoy!
...