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How to prevent Browser cache for php site
... can process 754 MiB/s without blinking. (openssl speed md5) Combined, a 100KB CSS file would have a combined additional overhead of… 129µs (microseconds, 0.1295ms) + 8ns (which does not meaningfully contribute to the final number) = 129µs.
– amcgregor
Ju...
How to filter SQL results in a has-many-through relation
....club(id)
);
INSERT INTO tmp.student(id)
SELECT generate_series(1,1000)
;
INSERT INTO tmp.club(id)
SELECT generate_series(1,100)
;
INSERT INTO tmp.student_club(student_id,club_id)
SELECT st.id , cl.id
FROM tmp.student st, tmp.club cl
;
DELETE FROM tmp.student_clu...
What does the CSS rule “clear: both” do?
...rder-box;
}
header, footer {
border: 5px solid #000;
height: 100px;
}
aside {
float: left;
width: 30%;
border: 5px solid #000;
height: 300px;
}
section {
float: left;
width: 70%;
border: 5px solid #000;
height: 300px;
}
.clear {
...
How do I give text or an image a transparent background using CSS?
...
.background {
position: absolute;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
background-color: Black;
z-index: 1;
/* These three lines are for transparency in all browsers. */
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
filter: alpha(opacity...
Is JavaScript guaranteed to be single-threaded?
...
l.value+= 'log in\n';
l.focus();
l.value+= 'log out\n';
}, 100);
i.focus();
<textarea id="log" rows="20" cols="40"></textarea>
<input id="inp">
Results in log in, blur, log out on all except IE. These events don't just fire because you called focus() direc...
Java HTTPS client certificate authentication
...sl x509 -req -days 365 -in server.csr -CA ca.crt -CAkey ca.key -set_serial 100 -out server.crt
and
$ openssl genrsa -des3 -out client.key 4096
$ openssl req -new -key client.key -out client.csr
$ openssl x509 -req -days 365 -in client.csr -CA ca.crt -CAkey ca.key -set_serial 101 -out client.crt
...
How do CUDA blocks/warps/threads map onto CUDA cores?
...GTX560 a rough estimate would be IssuedIPC / MaxIPC.
For MaxIPC assume
GF100 (GTX480) is 2
GF10x (GTX560) is 4 but target is 3 is a better target.
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Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
...
+100
What I did was creating my own Window and Style. Because I like to have control over everything and I didn't want some external libr...
How can I export tables to Excel from a webpage [closed]
...
+100
Far and away, the cleanest, easiest export from tables to Excel is Jquery DataTables Table Tools plugin. You get a grid that sorts,...
Python Infinity - Any caveats?
...
100
Python's implementation follows the IEEE-754 standard pretty well, which you can use as a guid...