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How to read a large file - line by line?
...object, Python looks up in the list of object methods a special one called __iter__, which tells it what to do. File objects define this special method to return an iterator over the lines. (Roughly.)
– Katriel
Feb 10 '15 at 12:14
...
Best approach for designing F# libraries for use from both F# and C#
...ed automatically. For example:
type A(arg) =
member x.Invoke(f: Func<_,_>) = f.Invoke(arg)
let a = A(1)
a.Invoke(fun i -> i + 1)
So it makes sense to use Func/Action where applicable. Does this eliminate your concerns? I think your proposed solutions are overly-complicated. You can wr...
How do I install Maven with Yum?
...apache-maven
Next add the env variables to your ~/.bashrc file
export M2_HOME=/usr/local/apache-maven
export M2=$M2_HOME/bin
export PATH=$M2:$PATH
Execute these commands
source ~/.bashrc
6:. Verify everything is working with the following command
mvn -version
...
Turning off some legends in a ggplot
...
You can use guide=FALSE in scale_..._...() to suppress legend.
For your example you should use scale_colour_continuous() because length is continuous variable (not discrete).
(p3 <- ggplot(mov, aes(year, rating, colour = length, shape = mpaa)) +
sca...
How can I get the latest JRE / JDK as a zip file rather than EXE or MSI installer? [closed]
...\JDK
Execute the following commands in cmd.exe:
cd C:\JDK\.rsrc\1033\JAVA_CAB10
extrac32 111
Unpack C:\JDK\.rsrc\1033\JAVA_CAB10\tools.zip with 7-zip
Execute the following commands in cmd.exe:
cd C:\JDK\.rsrc\1033\JAVA_CAB10\tools\
for /r %x in (*.pack) do .\bin\unpack200 -r "%x" "%~dx%~px%~nx....
Can I target all tags with a single selector?
...
¯_(ツ)_/¯ "can" != "should". Even so, the Sass/LESS options give you extensibility that vanilla CSS does not. Think of something like font-size: (48px / @index).
– Steve
Jul 21 '16 at...
Can I “multiply” a string (in C#)?
...ing this:
public static string Repeat(this string s, int count)
{
var _s = new System.Text.StringBuilder().Insert(0, s, count).ToString();
return _s;
}
I think I pulled that one from Stack Overflow some time ago, so it is not my idea.
...
Best way to work with dates in Android SQLite [closed]
... int flags = 0;
flags |= android.text.format.DateUtils.FORMAT_SHOW_TIME;
flags |= android.text.format.DateUtils.FORMAT_SHOW_DATE;
flags |= android.text.format.DateUtils.FORMAT_ABBREV_MONTH;
flags |= android.text.format.DateUtils.FORMAT_SHOW_YEAR;
...
How to uninstall editable packages with pip (installed with -e)
...tualenv}/lib/python2.7/site-packages/ (if not using virtualenv then {system_dir}/lib/python2.7/dist-packages/)
remove the egg file (e.g. distribute-0.6.34-py2.7.egg) if there is any
from file easy-install.pth, remove the corresponding line (it should be a path to the source directory or of an egg ...
How do I create a basic UIButton programmatically?
...height: 500)
myButton.addTarget(self, action: #selector(pressedAction(_:)), for: .touchUpInside)
self.view.addSubview( myButton)
func pressedAction(_ sender: UIButton) {
// do your stuff here
print("you clicked on button \(sender.tag)")
}
SwiftUI
for example you get the step by ...