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How to access the last value in a vector?
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384
I use the tail function:
tail(vector, n=1)
The nice thing with tail is that it works on dat...
How can I concatenate regex literals in JavaScript?
...ex2.flags).split("").sort().join("").replace(/(.)(?=.*\1)/g, "");
var regex3 = new RegExp(expression_one.source + expression_two.source, flags);
// regex3 is now /foobar/gy
It's just more wordy than just having expression one and two being literal strings instead of literal regular expressions.
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Prevent text selection after double click
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354
function clearSelection() {
if(document.selection && document.selection.empty) {
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How to get URI from an asset File?
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answered Jan 27 '11 at 19:31
CommonsWareCommonsWare
873k161161 gold badges21332133 silver badges21602160 bronze badges
...
How can I declare and use Boolean variables in a shell script?
...!'
fi
Original Answer
Caveats: https://stackoverflow.com/a/21210966/89391
the_world_is_flat=true
# ...do something interesting...
if $the_world_is_flat ; then
echo 'Be careful not to fall off!'
fi
From: Using boolean variables in Bash
The reason the original answer is included here is b...
How to change title of Activity in Android?
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answered Feb 4 '10 at 9:36
community wiki
jef...
Visual List of iOS Fonts?
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answered Nov 21 '13 at 15:35
CaptainRedmuffCaptainRedmuff
5,73522 gold badges3636 silver badges5353 bronze badges
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How does internationalization work in JavaScript?
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163
Localization support in legacy browsers is poor. Originally, this was due to phrases in the ECM...
Testing the type of a DOM element in JavaScript
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edited Apr 11 '14 at 3:32
Jonathan Day
18k77 gold badges7777 silver badges132132 bronze badges
answ...
How do you use variables in a simple PostgreSQL script?
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132
Complete answer is located in the official PostgreSQL documentation.
You can use new PG9.0 ano...