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How to create a zip file in Java
... a way to make this work if the extension is not .zip? I need to write a .foo file, which is formatted exactly like a zip file, but with a different extension. I know I could make a .zip file and rename it, but just creating it with the right name would be simpler.
– Troy Dan...
How to check if element is visible after scrolling?
...n element scrolls into view or otherwise becomes visible to the user.
$('#foo').appear(function() {
$(this).text('Hello world');
});
This plugin can be used to prevent unnecessary requests for content that's hidden or outside the viewable area.
...
Java 8 Lambda function that throws exception?
...on<T, R> {
R apply(T t) throws IOException;
}
and use it:
void foo (CheckedFunction f) { ... }
Otherwise, wrap Integer myMethod(String s) in a method that doesn't declare a checked exception:
public Integer myWrappedMethod(String s) {
try {
return myMethod(s);
}
cat...
How to elegantly check if a number is within a range?
...maximum;
}
Which would let you do something like...
int val = 15;
bool foo = val.IsWithin(5,20);
That being said, this seems like a silly thing to do when the check itself is only one line.
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What's the deal with a leading underscore in PHP class methods?
...ivate with an underscore. In some older classes you'll see /**private*/ __foo() { to give it some extra weight.
I've never heard of developers prefacing all their methods with underscores, so I can't begin to explain what causes that.
...
How to find where a method is defined at runtime?
...is gem:
ruby18_source_location
So you can request for the method:
m = Foo::Bar.method(:create)
And then ask for the source_location of that method:
m.source_location
This will return an array with filename and line number.
E.g for ActiveRecord::Base#validates this returns:
ActiveRecord::B...
Simulate delayed and dropped packets on Linux
...pply only to the port(s), which you want tested: iptables -A INPUT --dport FOO -m statistics .... This way, your ssh and other connections will remain unmolested and you can bump the drop-rate for the service of interest to be able to reproduce any problems with it faster.
– Mi...
Set Django IntegerField by choices=… name
... or if you don't prefer `__str__` method..
print(lang.name)
# Same as get_FOO_display
lang.name == some_instance.get_language_display()
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Border for an Image view in Android?
...lack" />
</shape>
Update the ImageView background in res/layout/foo.xml:
...
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="1dp"
android:background="@drawable/background"
android:src="@drawable/bar" />
...
Exclude th...
Case insensitive XPath contains() possible?
..., 'abcdefghijklmnopqrstuvwxyzäöüéèêàáâòóôùúûçåïõñœ'),'foo')]");
– Stefan Steiger
Nov 29 '13 at 9:34
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