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Reusing output from last command in Bash
Is the output of a Bash command stored in any register? E.g. something similar to $? capturing the output instead of the exit status.
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Label Alignment in iOS 6 - UITextAlignment deprecated
... It's possible that the enum MAY change at some time in the future and cause unexpected results. That's all. No doomsday scenario in this case, but better practices should prevail.
– Brenden
Nov 2 '12 at 19:36
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Eclipse comment/uncomment shortcut?
...found solutions for comment/uncomment shortcut on both Java class editor and jsf faceted webapp XHTML file editor :
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How to delete from a text file, all lines that contain a specific string?
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To remove the line and print the output to standard out:
sed '/pattern to match/d' ./infile
To directly modify the file – does not work with BSD sed:
sed -i '/pattern to match/d' ./infile
Same, but for BSD sed (Mac OS X and FreeBSD) –...
Get screen width and height in Android
How can I get the screen width and height and use this value in:
29 Answers
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Python memoising/deferred lookup property decorator
...f the instance, but they're a real bottleneck to calculate that first time and only really accessed for special cases. Hence they can also be cached after they've been retrieved from the database (this therefore fits the definition of memoisation where the input is simply "no input").
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In where shall I use isset() and !empty()
...TRUE , therefore isset() is not an effective way to validate text inputs and text boxes from a HTML form.
17 Answers
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Node.js on multi-core machines
... must miss something - isn't Node.js tuned only to run on a single process and thread?
15 Answers
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Outputting data from unit test in python
...ery late answer for someone that, like me, comes here looking for a simple and quick answer.
In Python 2.7 you could use an additional parameter msg to add information to the error message like this:
self.assertEqual(f.bar(t2), 2, msg='{0}, {1}'.format(t1, t2))
Offical docs here
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How to get next/previous record in MySQL?
Say I have records with IDs 3,4,7,9 and I want to be able to go from one to another by navigation via next/previous links. The problem is, that I don't know how to fetch record with nearest higher ID.
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