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Mailto links do nothing in Chrome but work in Firefox?
...n change how mailto: links behave in chrome by visiting chrome://settings/handlers, or Chrome Settings->Content Settings->Manage Handlers...
If "email" is not listed on that page, then see this answer regarding how to proceed.
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psql: FATAL: role “postgres” does not exist
...ep is to check the missing role: What is the output within psql of the command \du ? On my Ubuntu system the relevant line looks like this:
List of roles
Role name | Attributes | Member of
-----------+-----------------------------------+-------...
How to send JSON instead of a query string with $.ajax?
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You need to use JSON.stringify to first serialize your object to JSON, and then specify the contentType so your server understands it's JSON. This should do the trick:
$.ajax({
url: url,
type: "POST",
data: JSON.stringify(data),
contentType: "application/json",
complete: cal...
The best way to remove duplicate values from NSMutableArray in Objective-C?
...wrote the answer below in 2009; in 2011, Apple added NSOrderedSet to iOS 5 and Mac OS X 10.7. What had been an algorithm is now two lines of code:
NSOrderedSet *orderedSet = [NSOrderedSet orderedSetWithArray:yourArray];
NSArray *arrayWithoutDuplicates = [orderedSet array];
If you are worried ab...
Virtual/pure virtual explained
What exactly does it mean if a function is defined as virtual and is that the same as pure virtual?
12 Answers
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MongoDB: Find a document by non-existence of a field?
...operator:
db.mycollection.find({ "price" : { "$exists" : false } })
and see its documentation.
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What is the best way to remove accents (normalize) in a Python unicode string?
I have a Unicode string in Python, and I would like to remove all the accents (diacritics).
8 Answers
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Send email with PHPMailer - embed image in body
...he answer:
$mail->AddEmbeddedImage('img/2u_cs_mini.jpg', 'logo_2u');
and on the <img> tag put src='cid:logo_2u'
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How can I have grep not print out 'No such file or directory' errors?
I'm grepping through a large pile of code managed by git, and whenever I do a grep, I see piles and piles of messages of the form:
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Is there a function to deselect all text using JavaScript?
...elements. For form-fields (like textarea), this method doesn't work in IE9 and FF5.
– Šime Vidas
Jul 3 '11 at 13:37
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