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What's the best way to break from nested loops in JavaScript?
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Just like Perl,
loop1:
for (var i in set1) {
loop2:
for (var j in set2) {
loop3:
for (var k in set3) {
break loop2; // breaks out of loop3 and loop2
}
}
}
as defined in EMCA-262 section 12.12. [MDN Docs]
Unlike...
Macro vs Function in C
...* a
works fine when used with an integer:
square(5) --> 5 * 5 --> 25
but does very strange things when used with expressions:
square(1 + 2) --> 1 + 2 * 1 + 2 --> 1 + 2 + 2 --> 5
square(x++) --> x++ * x++ --> increments x twice
Putting parentheses around arguments helps b...
How do I use WPF bindings with RelativeSource?
...}}}
If you want to get a property on the templated parent (so you can do 2 way bindings in a ControlTemplate)
{Binding Path=PathToProperty, RelativeSource={RelativeSource TemplatedParent}}
or, shorter (this only works for OneWay bindings):
{TemplateBinding Path=PathToProperty}
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#ifdef #ifndef in Java
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126
private static final boolean enableFast = false;
// ...
if (enableFast) {
// This is removed...
How to show SQL queries run in the Rails console?
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254
Rails 3+
Enter this line in the console:
ActiveRecord::Base.logger = Logger.new(STDOUT)
Ra...
javascript check for not null
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|
edited Jul 26 '18 at 5:49
driftcatcher
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A Java collection of value pairs? (tuples?)
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255
The Pair class is one of those "gimme" generics examples that is easy enough to write on your ...
Remove non-utf8 characters from string
...# double-byte sequences 110xxxxx 10xxxxxx
| [\xE0-\xEF][\x80-\xBF]{2} # triple-byte sequences 1110xxxx 10xxxxxx * 2
| [\xF0-\xF7][\x80-\xBF]{3} # quadruple-byte sequence 11110xxx 10xxxxxx * 3
){1,100} # ...one or more times
)
| . ...
Removing a list of characters in string
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265
If you're using python2 and your inputs are strings (not unicodes), the absolutely best method...