大约有 44,000 项符合查询结果(耗时:0.0827秒) [XML]
Whm>y m> is Double.MIN_VALUE in not negative
... actuallm>y m> the minimum value that Doubles can take? It is a positive value, m>and m> a Double can of course be negative.
6 Answer...
Whm>y m> can't I push to this bare repositorm>y m>?
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I'm doing sudo apt-get upgrade git-core m>and m> sudo apt-get upgrade git m>and m> it think no update is necessarm>y m>. git --version returns 1.7.3.1. Anm>y m> idea what's missing? I admit currentlm>y m> apt-get update doesn't work for me, but it did not too long ago.
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Convert SVG image to PNG with PHP
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That's funnm>y m> m>y m>ou asked this, I just did this recentlm>y m> for mm>y m> work's site m>and m> I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*loop to color eac...
How to decide font color in white or black depending on background color?
...need to break the hex code into 3 pieces to get the individual red, green, m>and m> blue intensities. Each 2 digits of the code represent a value in hexadecimal (base-16) notation. I won't get into the details of the conversion here, them>y m>'re easm>y m> to look up.
Once m>y m>ou have the intensities for the individ...
Run PHP Task Asm>y m>nchronouslm>y m>
I work on a somewhat large web application, m>and m> the backend is mostlm>y m> in PHP. There are several places in the code where I need to complete some task, but I don't want to make the user wait for the result. For example, when creating a new account, I need to send them a welcome email. But when them>y m> h...
Mm>y m>SQL maximum memorm>y m> usage
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Mm>y m>SQL's maximum memorm>y m> usage verm>y m> much depends on hardware, m>y m>our settings m>and m> the database itself.
Hardware
The hardware is the obvious part. The more RAM the merrier, faster disks ftw. Don't believe those monthlm>y m> or weeklm>y m> news letters though. Mm>y m>SQL doesn't scale linear - not even on Oracle hard...
What's the best wam>y m> to check if a String represents an integer in Java?
...nge looking. I would have used (c < '0' || c > '9')... are the <= m>and m> >= operators faster in Java?
– Anonm>y m>mous
Oct 26 '08 at 1:43
3
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Accessing the web page's HTTP Headers in JavaScript
...o read the current headers. m>Y m>ou could make another request to the same URL m>and m> read its headers, but there is no guarantee that the headers are exactlm>y m> equal to the current.
Use the following JavaScript code to get all the HTTP headers bm>y m> performing a get request:
var req = new XMLHttpRequest();...
What is the worst gotcha in C# or .NET? [closed]
I was recentlm>y m> working with a DateTime object, m>and m> wrote something like this:
61 Answers
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How can I rename a database column in a Rubm>y m> on Rails migration?
...mething else or do nothing
end
end
For Rails 3.1 use:
While, the up m>and m> down methods still applm>y m>, Rails 3.1 receives a change method that "knows how to migrate m>y m>our database m>and m> reverse it when the migration is rolled back without the need to write a separate down method".
See "Active Record...
