Top "Built-in" questions

Django Template Filter Syntax error

I am trying to use django's built in 'default' filter using this code {% load sekizai_tags static compress i18n %} [...] &…

django templates filter built-in

No man page for the cd command

Ubuntu Linux 15.10 - I just noticed that there is no man page for cd This seems a bit strange. I …

linux shell command built-in ubuntu-15.10

Is it normal that the gcc atomic builtins are so slow?

I have an application where I have to increment some statistics counters in a multi-threaded method. The incrementing has to …

c++ performance gcc atomic built-in

How are methods, `classmethod`, and `staticmethod` implemented in Python?

At what point do methods in Python acquire a get property? —As soon as they're defined in the class? Why …

python class methods built-in

Python 2's `exceptions` module is missing in Python3, where did its contents go?

A friend mentioned that with Python 2, (assuming you have it on your path environment variable, on the commandline) $ pydoc exceptions …

python python-2.7 exception python-3.x built-in

Is there a built-in function to test for alpha or numeric data in Informix 7.3?

I have been searching around for a SQL function that tests a value for being alpha or for being numeric. …

sql function informix built-in isnumeric

Python: Why should I use next() and not obj.next()?

Python 2.6 introduced a next function. Why was this necessary? One could always type obj.next() instead of next(obj). Is …

python next built-in

Why is 'dir()' named 'dir' in python?

In Python there is a built-in function called dir. This is used to get a list of all the attributes …

python built-in dir

How to convert an existing assembly to a ms unit test assembly?

In Visual Studio 2010 Pro, how can I easily convert a classic assembly to a ms unit test assembly ? It there …

c# .net unit-testing visual-studio-2010 built-in

PHP array function that returns a subset for given keys

I'm looking for an array function that does something like this: $myArray = array( 'apple'=>'red', 'banana'=>'yellow', 'lettuce'=&…

php arrays higher-order-functions built-in