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Best way to represent a fraction in Java?
....numerator);
//not an easy case, so first make the denominators equal then compare the numerators
return numerator.multiply(f.denominator).compareTo(denominator.multiply(f.numerator));
}
/**
* Returns the smaller of this and f.
*/
public BigFraction min(BigFraction f)
{
...
Suggestions for debugging print stylesheets?
... the top right corner of the browser viewport to open the devtools drawer.
Then, select Media in the emulation drawer, and check the CSS media checkbox.
This should do the trick.
Update: The menus have changed in DevTools.
It can now be found by clicking on the "three-dots" menu in the top righ...
Asynchronous shell exec in PHP
...ell_exec($cmd);
This will execute the command at the command prompty and then just return the PID, which you can check for > 0 to ensure it worked.
This question is similar: Does PHP have threading?
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How can a Java variable be different from itself?
...rdance with the rules of the IEEE 754 standard:
If either operand is NaN, then the result of == is false but the result of != is true.
Indeed, the test x!=x is true if and only if the value of x is NaN.
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How to get enum value by string or int
...struct, IConvertible
{
return (T)Enum.Parse(typeof(T), enumValue);
}
then you can do:
TestEnum reqValue = "Value1".ToEnum<TestEnum>();
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What is the Swift equivalent of -[NSObject description]?
...n a Swift type you must implement the CustomStringConvertible protocol and then also implement a string property called description.
For example:
class MyClass: CustomStringConvertible {
let foo = 42
var description: String {
return "<\(type(of: self)): foo = \(foo)>"
}
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Is it possible to change only the alpha of a rgba background colour on hover?
...n only use the inherit keyword alone as a value for the property, and even then the use of inherit isn't appropriate here.
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What's the equivalent of use-commit-times for git?
...wever you really want to use commit times for timestamps when checking out then try using this script and place it (as executable) in the file $GIT_DIR/.git/hooks/post-checkout:
#!/bin/sh -e
OS=${OS:-`uname`}
old_rev="$1"
new_rev="$2"
get_file_rev() {
git rev-list -n 1 "$new_rev" "$1"
}
if ...
Multiline string literal in C#
...single line string argument when I am working with full screen editor. But then verbatim adds other invisible characters to the string itself so I could not find any other way.
– 5argon
May 24 '17 at 10:23
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Is there a point to minifying PHP?
...
PHP is compiled into bytecode, which is then interpreted on top of something resembling a VM. Many other scripting languages follow the same general process, including Perl and Ruby. It's not really a traditional interpreted language like, say, BASIC.
There woul...