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Generator Expressions vs. List Comprehension
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I know this is old, but I think it's worth noting that generators (and any iterable) can be added to lists with extend: a = [1, 2, 3] b = [4, 5, 6] a.extend(b) -- a will now be [1, 2, 3, 4, 5, 6]. (Can you add newlines in commen...
Set UILabel line spacing
...SAttributedString's old attributedStringWithString did the same thing, but now that is being deprecated.
For historical reasons, here's my original answer:
Short answer: you can't. To change the spacing between lines of text, you will have to subclass UILabel and roll your own drawTextInRect, crea...
Installing older version of R package
...are not yet reflected in Rpy2 (for example, see this post (Edit: Link is now dead)).
7 Answers
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Spring @Autowired usage
... My reasons for preferring fully @Autowired have changed over time.
Right now I think the most important reason for using autowiring is that there's one less abstraction in your system to keep track of. The "bean name" is effectively gone. It turns out the bean name only exists because of xml. So a...
What's the difference between UTF-8 and UTF-8 without BOM?
...hould not rely on this, as show by the example above
Encodings should be known, not divined.
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What does the CSS rule “clear: both” do?
... so this is how block level elements behave when floated left or right, so now why is clear: both; required and why?
So if you note in the layout demo - in case you forgot, here it is..
I am using a class called .clear and it holds a property called clear with a value of both. So lets see why it n...
How to make a Python script run like a service or daemon in Linux
...ike so:
import os, sys
fpid = os.fork()
if fpid!=0:
# Running as daemon now. PID is fpid
sys.exit(0)
Of course you also need to implement an endless loop, like
while 1:
do_your_check()
sleep(5)
Hope this get's you started.
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Simple explanation of MapReduce?
...rite it like this
A = [7, 8, 9]
sum = A.reduce( 0, (x, y) => x + y )
Now it's a little confusing why there are 2 arguments (0 and the function with x and y) passed. For a reduce function to be useful, it must be able to take 2 items, compute something and "reduce" that 2 items to just one sing...
window.onload vs
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DOMContentLoaded is now supported by IE9 and up: developer.mozilla.org/en-US/docs/Web/Events/DOMContentLoaded
– Adam
Mar 25 '15 at 13:18
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SQL query for today's date minus two months
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If you use MySQL this would become: MyDate < DATE_ADD(NOW(), INTERVAL -2 MONTH)
– Stefan
Feb 27 '14 at 15:51
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