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How to remove all line breaks from a string
..., the most efficient RegExp literal to match all variants is
/\r?\n|\r/
If you want to match all newlines in a string, use a global match,
/\r?\n|\r/g
respectively. Then proceed with the replace method as suggested in several other answers. (Probably you do not want to remove the newlines, bu...
Elegant way to search for UTF-8 files with BOM?
...1s/^\xEF\xBB\xBF//' -i {} \;
I love "find" :)
Warning The above will modify binary files which contain those three characters.
If you want just to show BOM files, use this one:
grep -rl $'\xEF\xBB\xBF' .
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What are the undocumented features and limitations of the Windows FINDSTR command?
...ame of the file containing the matching line. The file name is not printed if the request was explicitly for a single file, or if searching piped input or redirected input. When printed, the fileName will always include any path information provided. Additional path information will be added if the ...
How to mock localStorage in JavaScript unit tests?
...lStorage, 'clear').andCallFake(function () {
store = {};
});
});
If you want to mock the local storage in all your tests, declare the beforeEach() function shown above in the global scope of your tests (the usual place is a specHelper.js script).
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Why rename synthesized properties in iOS with leading underscores? [duplicate]
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This is an artifact of a previous version of the Objective-C runtime.
Originally, @synthesize was used to create accessors methods, but the runtime still required that instance variables had to be instantiated explicitly:
@interface Foo...
Returning multiple objects in an R function [duplicate]
...ense. The most general way to handle this is to return a list object. So if you have an integer foo and a vector of strings bar in your function, you could create a list that combines these items:
foo <- 12
bar <- c("a", "b", "e")
newList <- list("integer" = foo, "names" = bar)
Then re...
What is the “volatile” keyword used for?
...The compiler will then avoid any optimisations that may result in problems if the variable changes "outside of its control".
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Passing ssh options to git clone
...Option1 Value1
SshOption2 Value2
The Host entry is what you’ll specify on the command line, and the HostName is the true hostname. They can be the same, or the Host entry can be an alias. The User entry is used if you do not specify user@ on the command line.
If you must configure this on t...
IllegalArgumentException or NullPointerException for a null parameter? [closed]
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It seems like an IllegalArgumentException is called for if you don't want null to be an allowed value, and the NullPointerException would be thrown if you were trying to use a variable that turns out to be null.
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Linq list of lists to single list
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