大约有 15,211 项符合查询结果（耗时：0.0243秒） [XML]
How can I join elements of an array in Bash?
...,%s" "${foo[@]}". It is one fork less (actually clone). It is even forking reading a file: printf -v bar ",%s" $(<infile).
– TrueY
Jun 8 '13 at 22:55
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How to display PDF file in HTML?
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If you want to use pdf.js, I suggest you to read THIS
You can also upload your pdf somewhere (like Google Drive) and use its URL in a iframe
or
<object data="data/test.pdf" type="application/pdf" width="300" height="200">
<a href="data/test.pdf">test.pd...
How to find unused/dead code in java projects [closed]
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Reading the documentation, I see that it shrinks unused code, but I can't find anywhere where it lists it - agreed, an example, or link to the relevant section of the documentation, would be quite helpful!
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How can I tell when a MySQL table was last updated?
...function, to change the file timestamp.
On page display:
use stat() to read back the file modification time.
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What's the deal with a leading underscore in PHP class methods?
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When I first read about this, I understood the reason to be so that you can look at a method and know if it's public or private. Which would have made a whole lot more sense if it was a requirement rather than a convention. Because if 1 p...
How to get the list of files in a directory in a shell script?
...arily better than the other answers, but I find it intuitive because I'm already familiar with the ls command and the for loop syntax.
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How can I convert tabs to spaces in every file of a directory?
...our repo.
This will corrupt binary files, including those under svn, .git! Read the comments before using!
find . -iname '*.java' -type f -exec sed -i.orig 's/\t/ /g' {} +
The original file is saved as [filename].orig.
Replace '*.java' with the file ending of the file type you are looking for. T...
find vs find_by vs where
...f not found, whereas find_by will return null.
Sometimes it is easier to read if you have a method like find_by email: "haha", as opposed to .where(email: some_params).first.
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Select row with most recent date per user
...nvent the wheel every time, as this is common problem - instead, go for already tested and optimized solutions - @Prodikl see my answer.
– TMS
Jun 11 '13 at 7:42
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What happens if a finally block throws an exception?
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Unless it is a ThreadAbortException, then the whole finally block will be finished first, as it is a critical section.
– Dmytro Shevchenko
Oct 8 '13 at 21:23
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