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How does one remove an image in Docker?
...sis: "-f, --force=true|false Force removal of running container. The default is false."
– Konrad Kleine
Aug 28 '14 at 14:26
1
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Providing white space in a Swing GUI
... JFrame frame = new JFrame("Layout Example");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
JPanel contentPane = new JPanel(
new GridLayout(0, 1, hGap, vGap));
contentPane.setBorder(
BorderFactory.createEmptyBorder(hGap, ...
How do you do relative time in Rails?
...d (or distance_of_time_in_words), from ActiveSupport. Call it like this:
<%= time_ago_in_words(timestamp) %>
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What is Prefix.pch file in Xcode?
...me.
Let's take a look at Prefix.pch sample:
#ifdef __OBJC__
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#endif
To add .pch file go to Build Settings:
Developer has to manage .pch file that imposes additional costs for supporting it.
The next step is @import[...
Select + copy text in a TextView?
...able works (at least in ICS - I haven't yet checked in earlier versions)
<TextView
android:id="@+id/deviceIdTV"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textIsSelectable="true"
android:text="" />
...
The tilde operator in Python
...f the twos-complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is equivalent to (-x) - 1.
The reified form of the ~ operator is provided as operator.invert. To sup...
Is it possible to implement a Python for range loop without an iterator variable?
...hing like this:
def loop(f,n):
for i in xrange(n): f()
loop(lambda: <insert expression here>, 5)
But I think you can just live with the extra i variable.
Here is the option to use the _ variable, which in reality, is just another variable.
for _ in range(n):
do_something()
Note...
How to “undelete” a deleted folder in Subversion / TortoiseSVN?
... If you're restoring from a folder that still exists then -r <revision> will work. However if you're trying to restore the folder directly you'll need to use @<revision>. Otherwise it'll tell you the file was not found.
– arleslie
May 3...
Why doesn't Java allow to throw a checked exception from static initialization block?
...t makes it harder for) the developer from building something which can result in errors from which the application would be unable to recover.
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Repeat string to certain length
...f, to repeat a string an integer number of times, you can use overloaded multiplication:
>>> 'abc' * 7
'abcabcabcabcabcabcabc'
So, to repeat a string until it's at least as long as the length you want, you calculate the appropriate number of repeats and put it on the right-hand side of t...