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POST data in JSON format
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170
Not sure if you want jQuery.
var form;
form.onsubmit = function (e) {
// stop the regular fo...
Read and overwrite a file in Python
...ilename, 'r+')
text = f.read()
text = re.sub('foobar', 'bar', text)
f.seek(0)
f.write(text)
f.truncate()
f.close()
The functionality will likely also be cleaner and safer using open as a context manager, which will close the file handler, even if an error occurs!
with open(filename, 'r+') as f:
...
How to capture UIView to UIImage without loss of quality on retina display
... UIGraphicsBeginImageContextWithOptions (as documented on this page). Pass 0.0 for scale (the third argument) and you'll get a context with a scale factor equal to that of the screen.
UIGraphicsBeginImageContext uses a fixed scale factor of 1.0, so you're actually getting exactly the same image on ...
How to select a single field for all documents in a MongoDB collection?
In my MongoDB, I have a student collection with 10 records having fields name and roll . One record of this collection is:
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Rounding a double to turn it into an int (java)
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Drupad Panchal
38333 silver badges1010 bronze badges
answered Apr 16 '10 at 17:13
Mihir MathuriaMihir Mathuria
6,...
Float right and position absolute doesn't work together
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Use
position:absolute;
right: 0;
No need for float:right with absolute positioning
Also, make sure the parent element is set to position:relative;
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...
Increase number of axis ticks
...continuous. For example:
library(ggplot2)
dat <- data.frame(x = rnorm(100), y = rnorm(100))
ggplot(dat, aes(x,y)) +
geom_point()
Gives you this:
And overriding the scales can give you something like this:
ggplot(dat, aes(x,y)) +
geom_point() +
scale_x_continuous(breaks = round(seq(m...
Mongoose query where value is not null
...May 13 '13 at 22:11
numbers1311407numbers1311407
30.8k88 gold badges8080 silver badges8787 bronze badges
...
Locate the nginx.conf file my nginx is actually using
...
$ nginx -V
nginx version: nginx/1.11.1
built by gcc 4.9.2 (Debian 4.9.2-10)
built with OpenSSL 1.0.1k 8 Jan 2015
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib/nginx/modules --conf-path=/etc/nginx/nginx.conf ...
If you want, y...
How do you use String.substringWithRange? (or, how do Ranges work in Swift?)
...NSString = str as NSString
myNSString.substringWithRange(NSRange(location: 0, length: 3))
Note: as JanX2 mentioned, this second method is not safe with unicode strings.
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