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SQL Server: What is the difference between CROSS JOIN and FULL OUTER JOIN?
... often faster when there are few matches between the two tables, as use of indexes means it doesn't bother reading all the rows on one of the tables. a full outer join must always read all rows in both tables (or the relevant indexes). In the case where indexes are not enough, or an underlying heap ...
Changing the image source using jQuery
...s that number with how many images there are. This will keep the resultant index cycling from 0 to length-1, which are the indices of the $images object. This means this code will work with 2, 3, 5, 10, or 100 images... cycling through each image in order and restarting at the first image when the l...
How to find all links / pages on a website
Is it possible to find all the pages and links on ANY given website? I'd like to enter a URL and produce a directory tree of all links from that site?
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Using usort in php with a class private function
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Man this seems like such a weird way to do this. Oh PHP, how we love you.
– dudewad
Nov 28 '13 at 0:07
13
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In Python, how do I read the exif data for an image?
...n('img.jpg')
exif_data = img._getexif()
This should give you a dictionary indexed by EXIF numeric tags. If you want the dictionary indexed by the actual EXIF tag name strings, try something like:
import PIL.ExifTags
exif = {
PIL.ExifTags.TAGS[k]: v
for k, v in img._getexif().items()
if...
Detecting taps on attributed text in a UITextView in iOS
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// Find the character that's been tapped on
NSUInteger characterIndex;
characterIndex = [layoutManager characterIndexForPoint:location
inTextContainer:textView.textContainer
fractionOfDistanceBetweenInsertionPoints:NULL];
...
Best practice for Django project working directory structure
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includes/
footer.html
header.html
index.html
myapp/ # Application
core/
migrations/
__init__.py
templates/ # Application templates
myapp/
index.html
static/
...
Git: can't undo local changes (error: path … is unmerged)
... Not specifying HEAD will make git checkout check out from the index, which is a weaker operation (the content source is the index rather than HEAD). Furthermore I don’t think that makes a difference in this case at all - with the specific problem the question stated. Did you try that?...
How to use relative/absolute paths in css URLs?
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Personally, I would fix this in the .htaccess file. You should have access to that.
Define your CSS URL as such:
url(/image_dir/image.png);
In your .htacess file, put:
Options +FollowSymLinks
RewriteEngine On
RewriteRule ^ima...
Difference between var_dump,var_export & print_r
...2] => 42
[3] => Array ([0] => 42)
)
var_export prints valid php code. Useful if you calculated some values and want the results as a constant in another script. Note that var_export can not handle reference cycles/recursive arrays, whereas var_dump and print_r check for these. var_exp...