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How do I remove  from the beginning of a file?
...coding (i.e., one in which EF BB BF appears where the BOM should be) is an error. To remove the BOM from a UTF-8 file, one should remove the (single) charcter U+FEFF. Yeah, pedantry!
– Jeffrey L Whitledge
Jul 15 '10 at 14:05
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Python Dictionary Comprehension
...y:'your value here' for key in old_dict.keys()}
You're receiving a SyntaxError because when you write
d = {}
d[i for i in range(1, 11)] = True
you're basically saying: "Set my key 'i for i in range(1, 11)' to True" and "i for i in range(1, 11)" is not a valid key, it's just a syntax err...
Numpy `logical_or` for more than two arguments
Numpy's logical_or function takes no more than two arrays to compare. How can I find the union of more than two arrays? (The same question could be asked with regard to Numpy's logical_and and obtaining the intersection of more than two arrays.)
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Eclipse - Unable to install breakpoint due to missing line number attributes
I am getting this strange error in Eclipse while trying to set a breakpoint.
41 Answers
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项目管理实践【三】每日构建【Daily Build Using CruiseControl.NET and MS...
...且我们也可以通过Web Dashboard来查看具体的编译信息了，提示如果配置了邮件发送，那么我们还可以通过邮件收到详细的编译信息，怎么样？够方便吧！
其实，CCNET的功能是相当强大的，上面只是最常用的配置，其他还有很多...
In Bash, how to add “Are you sure [Y/n]” to any command or alias?
...something_else
fi
Note: If $response is an empty string, it will give an error. To fix, simply add quotation marks: "$response". – Always use double quotes in variables containing strings (e.g.: prefer to use "$@" instead $@).
Or, Bash 4.x:
read -r -p "Are you sure? [y/N] " response
response=$...
Can jQuery get all CSS styles associated with an element?
...l work.
– marknadal
Jul 3 '13 at 23:05
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show 22 more comments
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Rails 4 - Strong Parameters - Nested Objects
... @nayiaw i also get the unpermitted message but adding permit! raises this error NoMethodError (undefined method permit!' for #<Array:0x007f80cb71ea00>):`
– wuliwong
Apr 17 '18 at 22:17
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What is 'Pattern Matching' in functional languages?
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head :: List a -> a
-- An empty list has no first item, so we raise an error.
head Nil = error "empty list"
-- If we are given a `Cons`, we only want the first part; that's the list's head.
head (Cons h _) = h
Since List a values can be of two different kinds, we need to handle each one...
Linux/Unix command to determine if process is running?
...nd non-zero if it isn't. The POSIX spec says that ps must exit >0 if an error has occurred but it is unclear to me what constitutes 'an error'. Therefore I'm not personally using that strategy although I'm pretty sure it will work as well on all Unix/Linux platforms.
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