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C# 'is' operator performance
I have a program that requires fast performance. Within one of its inner loops, I need to test the type of an object to see whether it inherits from a certain interface.
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How to convert list of tuples to multiple lists?
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The built-in function zip() will almost do what you want:
>>> zip(*[(1, 2), (3, 4), (5, 6)])
[(1, 3, 5), (2, 4, 6)]
The only difference is that you get tuples instead of lists. You can convert them to lists using
map(list...
How can I check if a scrollbar is visible?
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a little plugin for it.
(function($) {
$.fn.hasScrollBar = function() {
return this.get(0).scrollHeight > this.height();
}
})(jQuery);
use it like this,
$('#my_div1').hasScrollBar(); // returns true if there's a `verti...
How do I make a matrix from a list of vectors in R?
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One option is to use do.call():
> do.call(rbind, a)
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 1 1 2 3 4 5
[2,] 2 1 2 3 4 5
[3,] 3 1 2 3 4 5
[4,] 4 1 2 3 4 5
[5,] 5 1 2 3 4 5
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How to detect if CMD is running as Administrator/has elevated privileges?
From inside a batch file, I would like to test whether I'm running with Administrator/elevated privileges.
13 Answers
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Remove a git commit which has not been pushed
... when you use git reset, you should refer to the commit that you are resetting to; so you would want the db0c078 commit, probably.
An easier version would be git reset --hard HEAD^, to reset to the previous commit before the current head; that way you don't have to be copying around commit IDs.
Be...
PostgreSQL: Is it better to use multiple databases with one schema each, or one database with multip
After this comment to one of my question, I'm thinking if it is better using one database with X schemas or vice versa.
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test a file upload using rspec - rails
I want to test a file upload in rails, but am not sure how to do this.
6 Answers
6
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What's the best mock framework for Java? [closed]
What's the best framework for creating mock objects in Java? Why? What are the pros and cons of each framework?
14 Answers
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Django: Get an object form the DB, or 'None' if nothing matches
...function which will let me get an object form the database, or None if nothing matches?
8 Answers
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