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How to add leading zeros?
...advantage of sprintf is that you can embed formatted numbers inside longer bits of text.
sprintf(
"Animal ID %06d was a %s.",
anim,
sample(c("lion", "tiger"), length(anim), replace = TRUE)
)
## [1] "Animal ID 025499 was a tiger." "Animal ID 025500 was a tiger."
## [3] "Animal ID 025501 was ...
is_null($x) vs $x === null in PHP [duplicate]
...
//checking with ===
$a = array();
$time = microtime(true);
for($i=0;$i<10000;$i++) {
if($a[$i] === null) {
//do nothing
}
}
echo 'Testing with === ', microtime(true) - $time, "\n";
//checking with is_null()
$time = microtime(true);
for($i=0;$i<10000;$i++) {
if(is_null($a...
How to make button look like a link?
...
border-bottom is a bit of a hack for making it looked underlined. This answer is otherwise a good start, but the second answer here is really more thorough and has the right solution for underlining.
– michael
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What's the difference between eval, exec, and compile?
...ass a reference to exec:
>>> call_later(exec, 'print(42)', delay=1000)
File "<stdin>", line 1
call_later(exec, 'print(42)', delay=1000)
^
SyntaxError: invalid syntax
Which a pattern that someone might actually have used, though unlikely;
Or use it in a lis...
How to render a DateTime object in a Twig template
...
310
Although you can use the
{{ game.gameDate|date('Y-m-d') }}
approach, keep in mind that this ...
Forward declaration of a typedef in C++
...
10 Answers
10
Active
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How to convert ‘false’ to 0 and ‘true’ to 1 in Python
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If B is a Boolean array, write
B = B*1
(A bit code golfy.)
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What is the best way to remove accents (normalize) in a Python unicode string?
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answered Apr 13 '10 at 21:21
Christian OudardChristian Oudard
40.5k2323 gold badges6262 silver badges6969 bronze badges
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Why is subtracting these two times (in 1927) giving a strange result?
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I'm sorry to say, but the time discontinuity has moved a bit in
JDK 6 two years ago, and in JDK 7 just recently in update 25.
Lesson to learn: avoid non-UTC times at all costs, except maybe for display.
s...
Is it possible to use 'else' in a list comprehension? [duplicate]
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edited Jun 1 '10 at 17:05
answered Jun 1 '10 at 17:00
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