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Math - mapping numbers
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If your number X falls between A and B, and you would like Y to fall between C and D, you can apply the following linear transform:
Y = (X-A)/(B-A) * (D-C) + C
That should give you what you want, although your question is a...
How should I read a file line-by-line in Python?
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There is exactly one reason why the following is preferred:
with open('filename.txt') as fp:
for line in fp:
print line
We are all spoiled by CPython's relatively deterministic reference-counting scheme for garbage collection. Other, hypothetica...
How to find files that match a wildcard string in Java?
This should be really simple. If I have a String like this:
16 Answers
16
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Best way to select random rows PostgreSQL
I want a random selection of rows in PostgreSQL, I tried this:
12 Answers
12
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How can I convert my device token (NSData) into an NSString?
I am implementing push notifications. I'd like to save my APNS Token as a String.
29 Answers
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Meaning of Git checkout double dashes
What is the meaning of the double dashes before the file name in this git command?
3 Answers
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Keyboard shortcuts with jQuery
How can I wire an event to fire if someone presses the letter g ?
12 Answers
12
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How do I delete a local repository in git? [duplicate]
I can't find the command. I tried Googling "git 'delete a repository'".
4 Answers
4
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brew update: The following untracked working tree files would be overwritten by merge:
...run brew update and I get an error about my local changes would be lost if I merged. I tried committing my local changes (don't remember making any, but it's been awhile), and that made things worse.
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Referring to a Column Alias in a WHERE Clause
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SELECT
logcount, logUserID, maxlogtm,
DATEDIFF(day, maxlogtm, GETDATE()) AS daysdiff
FROM statslogsummary
WHERE ( DATEDIFF(day, maxlogtm, GETDATE() > 120)
Normally you can't refer to field aliases in the WHERE clause. (Think of it as the entire SELECT including al...