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Java Generics Wildcarding With Multiple Classes
...object, but I want to force whatever class it represents to extend class A and implement interface B.
3 Answers
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LESS CSS nesting classes
I'm using LESS to improve my CSS and am trying to nest a class within a class. There's a fairly complicated hierarchy but for some reason my nesting doesn't work.
I have this:
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Git stash twice
... just call git stash pop twice. As opposed to git stash apply, pop applies and removes the latest stash.
You can also reference a specific stash, e.g.
git stash show stash@{1}
or
git stash apply stash@{1}
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ImageView in circular through xml
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You can make a simple circle with white border and transparent content with shape.
// res/drawable/circle.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:innerRadius="0dp"
android:shape="ring"
android:thicknessRatio="1.9"
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HashMap to return default value for non-found keys?
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[Update]
As noted by other answers and commenters, as of Java 8 you can simply call Map#getOrDefault(...).
[Original]
There's no Map implementation that does this exactly but it would be trivial to implement your own by extending HashMap:
public class Defau...
How is CountDownLatch used in Java Multithreading?
Can someone help me to understand what Java CountDownLatch is and when to use it?
12 Answers
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How should I detect unnecessary #include files in a large C++ project?
I am working on a large C++ project in Visual Studio 2008, and there are a lot of files with unnecessary #include directives. Sometimes the #include s are just artifacts and everything will compile fine with them removed, and in other cases classes could be forward declared and the #include could...
When should Flask.g be used?
...ting DB connections are tasks which setup the environment for the request, and should not be handled inside before_request and after_request)
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How do I rename a Git repository?
...s used by git clone master child, so we can simply rename it:
Open a command prompt (or file manager window).
Change to the directory that contains the repository directory (i.e., do not go into the repository directory itself).
Rename the directory (for example, using mv from the command line or...
FormData.append(“key”, “value”) is not working
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New in Chrome 50+ and Firefox 39+ (resp. 44+):
formdata.entries() (combine with Array.from() for debugability)
formdata.get(key)
and more very useful methods
Original answer:
What I usually do to 'debug' a FormData object, is just send it...