大约有 48,000 项符合查询结果（耗时：0.0752秒） [XML]
How to determine if a list of polygon points are in clockwise order?
...t a handful of large values could outweigh a large number of small values. Now consider arcsin of each value vs not. Isn't it still the case that failing to take arcsin gives incorrect weight to each value, therefore has same flaw (though much less so)?
– ToolmakerSteve
...
Executing a command stored in a variable from PowerShell
...zip', 'C:\TEMP\with space\changelog'
& $cmd $prm
If the command is known (7z.exe) and only parameters are variable then this will do
$prm = 'a', '-tzip', 'c:\temp\with space\test1.zip', 'C:\TEMP\with space\changelog'
& 7z.exe $prm
BTW, Invoke-Expression with one parameter works for me...
How do I vertically center text with CSS? [duplicate]
...
But this is what he said, if you know how much text you will use its perfectly acceptable... the solution below is however more flexible
– rmorse
Sep 11 '12 at 16:05
...
How to round up a number to nearest 10?
...n ($r <= 5) : $roundee - $r : $roundee + (10 - $r);
}
Edit: I didn't know (and it's not well documented on the site) that round now supports "negative" precision, so you can more easily use
$round = round($roundee, -1);
Edit again: If you always want to round up, you can try
function roundU...
How to vertically center a div for all browsers?
...I built in some dynamic content to test the flexibility and would love to know if anyone sees any problems with it. It should work well for centered overlays also -- lightbox, pop-up, etc.
share
|
i...
Vim: Replacing a line with another one yanked before
...
This has the additional disadvantage
that line X is now in the default
register, which is annoying if I find
another line that should be replaced
with A.
To delete text without affecting the normal registers, you can use the Black hole register "_:
"_dd
...
Changing route doesn't scroll to top in the new page
...the listener in the run block calls the
$anchorScroll()
and you can now see the scroll starts to the top with the new routed view :)
share
|
improve this answer
|
foll...
How to download .zip from GitHub for a particular commit sha?
...
They have a 'Clone or Download' button now, where you can 'Download ZIP'.
– SureshS
Jul 27 '16 at 4:24
...
Maintain aspect ratio of div but fill screen width and height in CSS?
...de by a percentage is CSS, this is not possible without JavaScript (to my knowledge).
I've written a working script that will keep the desired aspect ratio.
HTML
<div id="aspectRatio"></div>
CSS
body { width: 100%; height: 100%; padding: 0; margin: 0; }
#aspectRatio { background: #...
Is there a PHP function that can escape regex patterns before they are applied?
...passed
// to preg_quote
$regex = '/\s' . $escapedUrl . '\s/';
// $regex is now: /\shttp\:\/\/stackoverflow\.com\/questions\?sort\=newest\s/
$haystack = "Bla bla http://stackoverflow.com/questions?sort=newest bla bla";
preg_match($regex, $haystack, $matches);
var_dump($matches);
// array(1) {
// ...