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What do < and > stand for?

I know that the entities < and > are used for < and > , but I am curious what these names stand for. ...
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How to execute a Ruby script in Terminal?

...set everything up that I need on my Mac (Ruby, Rails, Homebrew, Git, etc), and I've even written a small program. Now, how do I execute it in Terminal? I wrote the program in Redcar and saved it as a .rb, but I don't know how to execute it through Terminal. I want to run the program and see if it ac...
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std::vector versus std::array in C++

What are the difference between a std::vector and an std::array in C++? When should one be preferred over another? What are the pros and cons of each? All my textbook does is list how they are the same. ...
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Return positions of a regex match() in Javascript?

... if (match) { console.log("match found at " + match.index); } And for multiple matches: var re = /bar/g, str = "foobarfoobar"; while ((match = re.exec(str)) != null) { console.log("match found at " + match.index); } ...
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Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?

While most apple documents are very well written, I think ' Event Handling Guide for iOS ' is an exception. It's hard for me to clearly understand what's been described there. ...
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Read file from line 2 or skip header row

How can I skip the header row and start reading a file from line2? 8 Answers 8 ...
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Difference between addSubview and insertSubview in UIView class

What is the difference between addSubview and insertSubView methods when a view is added programmatically? 4 Answers ...
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Getting the location from an IP address [duplicate]

I want to retrieve information like the city, state, and country of a visitor from their IP address, so that I can customize my web page according to their location. Is there a good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, an...
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How to dynamically update a ListView on Android [closed]

On Android, how can I a ListView that filters based on user input, where the items shown are updated dynamically based on the TextView value? ...
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How to check a string for specific characters?

...ic than the above... s.find('$')==-1 # not found s.find('$')!=-1 # found And so on for other characters. ... or pattern = re.compile(r'\d\$,') if pattern.findall(s): print('Found') else print('Not found') ... or chars = set('0123456789$,') if any((c in chars) for c in s): print('F...