大约有 43,084 项符合查询结果（耗时：0.0582秒） [XML]
Count number of occurrences of a pattern in a file (even on same line)
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157
To count all occurrences, use -o. Try this:
echo afoobarfoobar | grep -o foo | wc -l
And ma...
Sublime Text 2: Trim trailing white space on demand
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71
Beware: using this plugin makes Sublime Text significantly slower
I use TrailingSpaces plugin f...
Is object empty? [duplicate]
...th: 0, custom_property: []}), // true
isEmpty("Hello"), // false
isEmpty([1,2,3]), // false
isEmpty({test: 1}), // false
isEmpty({length: 3, custom_property: [1,2,3]}) // false
If you only need to handle ECMAScript5 browsers, you can use Object.getOwnPropertyNames instead of the hasOwnProperty lo...
What is the __DynamicallyInvokable attribute for?
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140
It is undocumented, but it looks like one of the optimizations in .NET 4.5. It appears to be ...
Parcelable where/when is describeContents() used?
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181
There is a constant defined in Parcelable called CONTENTS_FILE_DESCRIPTOR which is meant to be...
How do I get Pyflakes to ignore a statement?
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217
+50
If you c...
The term 'Get-ADUser' is not recognized as the name of a cmdlet
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127
If the ActiveDirectory module is present add
import-module activedirectory
before your code...
How to exit if a command failed?
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Try:
my_command || { echo 'my_command failed' ; exit 1; }
Four changes:
Change && to ||
Use { } in place of ( )
Introduce ; after exit and
spaces after { and before }
Since you want to print the message and exit only when the command fails ( exits with non-zero va...
Convert string to List in one line?
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edited Feb 16 '11 at 1:19
answered Feb 16 '11 at 1:09
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Jackson and generic type reference
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199
This is a well-known problem with Java type erasure: T is just a type variable, and you must i...