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(HTML) Download a PDF file instead of opening them in browser when clicked

I was wondering how to make a PDF file link downloadable instead of opening them in the browser? How is this done in html? (I'd assume it's done via javascript or something). ...
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Append lines to a file using a StreamWriter

I want to append lines to my file. I am using a StreamWriter: 11 Answers 11 ...
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How do I concatenate strings in Swift?

How to concatenate string in Swift? 18 Answers 18 ...
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How to obtain the start time and end time of a day?

How to obtain the start time and end time of a day? 14 Answers 14 ...
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Removing colors from output

I have some script that produces output with colors and I need to remove the ANSI codes. 13 Answers ...
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Python naming conventions for modules

I have a module whose purpose is to define a class called "nib". (and a few related classes too.) How should I call the module itself? "nib"? "nibmodule"? Anything else? ...
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How do I get a file extension in PHP?

This is a question you can read everywhere on the web with various answers: 28 Answers ...
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Extract a substring from a string in Ruby using a regular expression

How can I extract a substring from within a string in Ruby? 5 Answers 5 ...
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Determine if an element has a CSS class with jQuery

I'm working with jQuery and looking to see if there is an easy way to determine if the element has a specific CSS class associated with it. ...
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How to use multiple arguments for awk with a shebang (i.e. #!)?

I'd like to execute an gawk script with --re-interval using a shebang. The "naive" approach of 10 Answers ...