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WARN Could not determine content-length of response body. Set content-length of the response or set

... 165 This is a problem of Webrick. you can use "Thin" instead. Add this to Gemfile gem 'thin' t...
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How to combine multiple conditions to subset a data-frame using “OR”?

... my.data.frame <- subset(data , V1 > 2 | V2 < 4) An alternative solution that mimics the behavior of this function and would be more appropriate for inclusion within a function body: new.data <- data[ which( data$V1 > 2 | data$V2 < 4) , ] ...
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How do you make a HTTP request with C++?

...contents of a page (an API) and check the contents to see if it contains a 1 or a 0. Is it also possible to download the contents into a string? ...
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What happens if I define a 0-size array in C/C++?

... An array cannot have zero size. ISO 9899:2011 6.7.6.2: If the expression is a constant expression, it shall have a value greater than zero. The above text is true both for a plain array (paragraph 1). For a VLA (variable length array), the behavior is undefined ...
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What's the equivalent of use-commit-times for git?

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Run git pull over all subdirectories [duplicate]

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How do you round a number to two decimal places in C#?

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Calculating arithmetic mean (one type of average) in Python

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Efficient way to determine number of digits in an integer

... 107 Well, the most efficient way, presuming you know the size of the integer, would be a lookup. ...
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Bootstrap throws Uncaught Error: Bootstrap's JavaScript requires jQuery [closed]

...trying to use Bootstrap to make an interface for a program. I added jQuery 1.11.0 to the <head> tag and thought that was that, but when I launch the web page in a browser jQuery reports an error: ...