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What's the difference between %s and %d in Python string formatting?
...'Hi Alice I have 42 donuts'
This could be achieved with a "+" most of the time. To gain a deeper understanding to your question, you may want to check {} / .format() as well. Here is one example: Python string formatting: % vs. .format
also see here a google python tutorial video @ 40', it has som...
SQL WHERE.. IN clause multiple columns
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Wrong, this delivers the row multiple times, assuming the joined table be can be joined several times... otherwise, do an inner join and you can spare yourself the where.
– Stefan Steiger
Nov 20 '19 at 15:03
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Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE
...n install the fresh one .
You could simply increase the number by one each time a new version is released.
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Outline effect to text
... called text-stroke in CSS3, I've been trying to get this to work for some time but have been unsuccessful so far.
What I have done instead is used the already supported text-shadow property (supported in Chrome, Firefox, Opera, and IE 9 I believe).
Use four shadows to simulate a stroked text:
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How to extract the first two characters of a string in shell scripting?
...method is usually better if you're going to be doing it a lot (like 50,000 times per report as you mention) since there's no process creation overhead. All solutions which use external programs will suffer from that overhead.
If you also wanted to ensure a minimum length, you could pad it out befor...
Please explain some of Paul Graham's points on Lisp
... arguably does not fully satisfy the fourth point on your list, since read-time is not really open to user code; I will discuss what it would mean for this to be otherwise, though.
So, suppose we've got this code in a file somewhere and we ask Clojure to execute it. Also, let's assume (for the sake ...
Learning Python from Ruby; Differences and Similarities
... whether to use map (etc) to call the method on a difference instance each time (pass an unbound method), or to keep the instance fixed and pass a different second argument each time. Both are useful.
– LaC
Jan 23 '11 at 21:38
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How to sort Map values by key in Java?
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In a HashMap, moving from 1000 items to 10,000 doesn't really affect your time to lookup an element, but for a TreeMap the lookup time will be about 3 times slower (assuming Log2). Moving from 1000 to 100,000 will be about 6 times slower for every element lookup.
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What are dictionary view objects?
...cter of views: the keys view is not a copy of the keys at a given point in time, but rather a simple window that shows you the keys; if they are changed, then what you see through the window does change as well. This feature can be useful in some circumstances (for instance, one can work with a vie...
How often does python flush to a file?
...is buffered in memory and accumulated until the buffer is full... at which time the buffer gets "flushed" (content is written from the buffer to the file). You can explicitly flush the buffer by calling the flush() method on a file handle.
– Corey Goldberg
Mar...