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examining history of deleted file
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If I have a repo with 100,000 commits, "lastrevisionthefileexisted" is not easy to find!
– Jon Watte
Jul 6 '16 at 19:55
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How can I check if a Perl array contains a particular value?
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Best general purpose - Especially short arrays (1000 items or less) and coders that are unsure of what optimizations best suit their needs.
# $value can be any regex. be safe
if ( grep( /^$value$/, @array ) ) {
print "found it";
}
It has been mentioned that grep passe...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
... is slightly faster.
The above function is called in a tight loop of size 100,000. Despite that the function is slightly faster for thread 1, both loops synchronize because of the call to the mutex. This is visible in the graph from the fact that the number of clocks measured for the lock/unlock pa...
Bootstrap 3 Flush footer to bottom. not fixed
...page has more content.
CSS
* {
margin: 0;
}
html, body {
height: 100%;
}
.wrapper {
min-height: 100%;
height: 100%;
margin: 0 auto -155px; /* the bottom margin is the negative value of the footer's height */
}
.footer, .push {
height: 155px; /* .push must be the same height...
Capture HTML Canvas as gif/jpg/png/pdf?
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context.fillStyle = "green";
context.fillRect(50, 50, 100, 100);
// no argument defaults to image/png; image/jpeg, etc also work on some
// implementations -- image/png is the only one that must be supported per spec.
window.location = canvas.toData...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
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+100
I created a test suite, precisely to explore these issues (and more) (archived copy).
And in that sense, you can see the performanc...
Visual Studio : short cut Key : Duplicate Line
...urse easier would be to use ctrl+D, but if You want to duplicate 1 line in 100 copies You can do it using ctrl+c (without need to select anything, just put command prompt over wanted line) + 100 times ctrl+v. It's only one set of keystrokes more than ctrl+d solution. It can be more problematic if Yo...
Intellij IDEA Java classes not auto compiling on save
... informatik01
14.7k88 gold badges6666 silver badges100100 bronze badges
answered Oct 5 '12 at 10:35
dandan
12.3k33 gold badges333...
How can I use “puts” to the console without a line break in ruby on rails?
...r each print...
def print_and_flush(str)
print str
$stdout.flush
end
100.times do
print_and_flush "."
sleep 1
end
Edit: I was just looking into the reasoning behind flush to answer @rubyprince's comment, and realised this could be cleaned up a little by simply using $stdout.sync = true.....
Create batches in linq
...l allocate space even for non-existent elements: Batch(new int[] { 1, 2 }, 1000000)
– Nick Whaley
Jul 12 '13 at 18:56
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