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Where to place private methods in Ruby?
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answered Jun 20 '14 at 19:11
DennisDennis
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HTML select form with option to enter custom value
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245
HTML5 has a built-in combo box. You create a text input and a datalist. Then you add a list att...
JSONP with ASP.NET Web API
I am working on creating a new set of services in ASP.MVC MVC 4 using the Web API. So far, it's great. I have created the service and gotten it to work, and now I am trying to consume it using JQuery. I can get back the JSON string using Fiddler, and it seems to be ok, but because the service exi...
How to get the unix timestamp in C#
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624
You get a unix timestamp in C# by using DateTime.UtcNow and subtracting the epoch time of 1970-0...
How can a LEFT OUTER JOIN return more records than exist in the left table?
...e additional information from a much bigger table. The left table contains 4935 records yet when I LEFT OUTER JOIN it to an additional table the record count is significantly larger.
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How to run Django's test database only in memory?
...BASES['default'] = {'ENGINE': 'sqlite3'}
And finally in Django 1.3 and 1.4:
if 'test' in sys.argv:
DATABASES['default'] = {'ENGINE': 'django.db.backends.sqlite3'}
(The full path to the backend isn't strictly necessary with Django 1.3, but makes the setting forward compatible.)
You can also...
HashSet vs. List performance
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841
A lot of people are saying that once you get to the size where speed is actually a concern that...
Why number 9 in kill -9 command in unix? [closed]
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Back in the day (by which I mean 4.xBSD or so) you couldn't use the mnemonics with the shell command, which is why the number 9 is written into an awful lot of old dusty-deck shell scripts.
– zwol
Mar 30 '12 at 23:33
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Semi-transparent color layer over background-image?
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14 Answers
14
Active
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Coalesce function for PHP?
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194
There is a new operator in php 5.3 which does this: ?:
// A
echo 'A' ?: 'B';
// B
echo '' ?: ...