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What does tilde-greater-than (~>) mean in Ruby gem dependencies? [duplicate]
...imately greater than! That makes so much sense - ~ to mean "approximately" and > to mean "greater than". I always thought ~> was supposed to look like an arrow, and didn't really understand the particular choice of symbol... breakthrough.
– GMA
Jul 29 '14...
How to evaluate a math expression given in string form?
...ntext with user input. The executed JavaScript can access all Java classes and thus hijack your application without limit.
– Boann
Sep 21 '15 at 11:08
4
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How can I restart a Java application?
...a Java AWT application? I have a button to which I have attached an event handler. What code should I use to restart the application?
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Does a C# app track how long its been running?
And if it does, is there an easy way to get the total time since it started?
3 Answers
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Learning Ant path style
...ework/servlet/bla.jsp but also org/springframework/testing/servlet/bla.jsp and org/servlet/bla.jsp
com/{filename:\\w+}.jsp will match com/test.jsp and assign the value test to the filename variable
http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/util/AntPathMatcher.html
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android button selector
... just need to set selector of button in your layout file.
<Button
android:id="@+id/button1"
android:background="@drawable/selector_xml_name"
android:layout_width="200dp"
android:layout_height="126dp"
android:text="Hello" />
and done.
Edit
Following is button_effec...
Move an item inside a list?
...already in the list to the specified position, you would have to delete it and insert it at the new position:
l.insert(newindex, l.pop(oldindex))
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For files in directory, only echo filename (no path)
.../}"
done
The above uses Parameter Expansion which is native to the shell and does not require a call to an external binary such as basename
However, might I suggest just using find
find /home/user -type f -printf "%f\n"
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Is there any advantage of using map over unordered_map in case of trivial keys?
... in the case of keys with simple types -- I took a look at the interfaces, and didn't find any significant differences that would impact my code.
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What format string do I use for milliseconds in date strings on iPhone?
...you just get zeros e.g. for the timeIntervalSince1970 of 1415986217.544384 and .SSSSSS you get .544000 so not a great solution.
– malhal
Nov 14 '14 at 17:31
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