大约有 15,208 项符合查询结果(耗时:0.0415秒) [XML]

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What is Haskell used for in the real world? [closed]

...er-to-value) or unboxed (value directly) representation... Safe multithreading! Immutable data structures are not subject to data race conditions, and consequently don't have to be protected by locks. If you are always allocating new objects, rather than destructively manipulating existing o...
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Running bash script from within python

...an't change it e.g., by running os.chmod('sleep.sh', 0o755) then you could read the script as a text file and pass the string to subprocess module instead: with open('sleep.sh', 'rb') as file: script = file.read() rc = call(script, shell=True) ...
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How to check for file lock? [duplicate]

... worthless anyway since the file could become locked the very next second (read: short timespan). Why specifically do you need to know if the file is locked anyway? Knowing that might give us some other way of giving you good advice. If your code would look like this: if not locked then open ...
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Parse string to date with moment.js

...2014-02-27T10:00:00 and output day month year (14 march 2014) I have been reading the docs but without success http://momentjs.com/docs/#/parsing/now/ ...
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What is the advantage to using bloom filters?

I am reading up on bloom filters and they just seem silly. Anything you can accomplish with a bloom filter, you could accomplish in less space, more efficiently, using a single hash function rather than multiple, or that's what it seems. Why would you use a bloom filter and how is it useful? ...
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Maximum number of records in a MySQL database table

... @Tchalvak that's for signed int, please read mysql documentation. – Leandro Jul 19 '12 at 21:10 8 ...
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How can I use NSError in my iPhone App?

...Apple and I think my code behaves in much the same way. The posts above already explain how to create NSError objects and return them, so I won't bother with that part. I'll just try to suggest a good way to integrate errors (codes, messages) in your own app. I recommend creating 1 header that w...
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Is it possible to perform a 'grep search' in all the branches of a Git project?

...ll the branches. Another form would be: git rev-list --all | ( while read revision; do git grep -F 'yourWord' $revision done ) You can find even more example in this article: I tried the above on one project large enough that git complained about the argument size, so if you ...
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HTML 5: Is it , , or ?

... Since it's optional, I like more the /> because it is good for the readability. – BrunoLM Jul 13 '10 at 12:12 42 ...
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Mongoose's find method with $or condition does not work properly

...gt; { /*logic here*/ }) .catch(error => { /*error logic here*/ }) Read more about Mongoose Queries. share | improve this answer | follow | ...