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What is the fundamental difference between WebSockets and pure TCP?
...ally they will have only a few standard ones such as port 80 for HTTP or 443 for HTTPS. So, to communicate with the server you are obliged to connect using one of those ports.
Given that these are standard ports for web servers that generally speak HTTP, you're therefore obliged to conform to the H...
How to remove a file from version control without deleting it?
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In Postgresql, force unique on combination of two columns
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CREATE TABLE someTable (
id serial primary key,
col1 int NOT NULL,
col2 int NOT NUL...
Efficient way to rotate a list in python
...method.
from collections import deque
items = deque([1, 2])
items.append(3) # deque == [1, 2, 3]
items.rotate(1) # The deque is now: [3, 1, 2]
items.rotate(-1) # Returns deque to original state: [1, 2, 3]
item = items.popleft() # deque == [2, 3]
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How Do I Fetch All Old Items on an RSS Feed?
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answered Feb 23 '09 at 5:22
David DeanDavid Dean
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Why do you need to create a cursor when querying a sqlite database?
I'm completely new to Python's sqlite3 module (and SQL in general for that matter), and this just completely stumps me. The abundant lack of descriptions of cursor objects (rather, their necessity) also seems odd.
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Why can't I access DateTime->date in PHP's DateTime class?
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jeremyjeremy
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How to create function that returns nothing
... write a function with pl/pgsql .
I'm using PostgresEnterprise Manager v3 and using shell to make a function, but in the shell I must define return type. If I don't define the return type, I'm not able to create a function.
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Fit background image to div
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edited May 23 '17 at 12:02
Community♦
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answered Nov 20 '11 at 8:14
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Can I create more than one repository for github pages?
...ntation, including options for using custom domain names.
(since April 2013, all username.github.com are now username.github.io)
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