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Return first N key:value pairs from dict
...ch keys were inserted first.
You can get any n key-value pairs though:
n_items = take(n, d.iteritems())
This uses the implementation of take from the itertools recipes:
from itertools import islice
def take(n, iterable):
"Return first n items of the iterable as a list"
return list(isli...
How to find index of all occurrences of element in array?
...arameter that specifies the index to start searching from, so you can call it in a loop to find all instances of a particular value:
function getAllIndexes(arr, val) {
var indexes = [], i = -1;
while ((i = arr.indexOf(val, i+1)) != -1){
indexes.push(i);
}
return indexes;
}
v...
What does android:layout_weight mean?
... don't understand how to use this attribute. Can anyone tell me more about it?
13 Answers
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Twitter oAuth callbackUrl - localhost development
Is anyone else having a difficult time getting Twitters oAuth's callback URL to hit their localhost development environment.
Apparently it has been disabled recently. http://code.google.com/p/twitter-api/issues/detail?id=534#c1
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How do I import the javax.servlet API in my Eclipse project?
I want to develop with Servlets in Eclipse, but it says that the package javax.servlet cannot be resolved. How can I add javax.servlet package to my Eclipse project?
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How to allocate aligned memory only using the standard library?
... Google for reference. I'd like to see what the StackOverflow crew can do with it:
17 Answers
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Can I have multiple primary keys in a single table?
...
A Table can have a Composite Primary Key which is a primary key made from two or more columns. For example:
CREATE TABLE userdata (
userid INT,
userdataid INT,
info char(200),
primary key (userid, userdataid)
);
Update: Here is a link with...
What is __declspec and when do I need to use it?
...have seen instances of __declspec in the code that I am reading. What is it? And when would I need to use this construct?
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Targeting .NET Framework 4.5 via Visual Studio 2010
...installed the .NET Framework 4.5 on my machine expecting to be able to use it from Visual Studio 2010, since it's just a minor update that should't pose problems for Visual Studio 2010. Unfortunately I am not, even manually removing certain 4.0 and adding the corresponding 4.5 assemblies resulted ...
htaccess Access-Control-Allow-Origin
I'm creating a script that loads externally on other sites. It loads CSS and HTML and works fine on my own servers.
9 Answe...