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How can I create a Set of Sets in Python?

I'm trying to make a set of sets in Python. I can't figure out how to do it. 5 Answers ...
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Using jQuery to see if a div has a child with a certain class

I have a div #popup that is dynamically filled with several paragraphs with the class .filled-text . I'm trying to get jQuery to tell me if #popup has one of these paragraphs in it. ...
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Count number of matches of a regex in Javascript

I wanted to write a regex to count the number of spaces/tabs/newline in a chunk of text. So I naively wrote the following:- ...
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Block Comments in Clojure

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how to get the last character of a string?

How to get the last character of the string: 12 Answers 12 ...
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Best way to format integer as string with leading zeros? [duplicate]

I need to add leading zeros to integer to make a string with defined quantity of digits ($cnt). What the best way to translate this simple function from PHP to Python: ...
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“for” vs “each” in Ruby

I just had a quick question regarding loops in Ruby. Is there a difference between these two ways of iterating through a collection? ...
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How can I stage and commit all files, including newly added files, using a single command?

How can I stage and commit all files, including newly added files, using a single command? 12 Answers ...
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pdftk compression option

I use pdftk to compress a pdf using the following command line 10 Answers 10 ...
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Removing duplicates from a list of lists

I have a list of lists in Python: 11 Answers 11 ...