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How to show current time in JavaScript in the format HH:MM:SS?

...ero in front of numbers<10 m = checkTime(m); s = checkTime(s); document.getElementById('time').innerHTML = h + ":" + m + ":" + s; t = setTimeout(function() { startTime() }, 500); } startTime(); <div id="time"></div> DEMO using javaScript only Update Upd...
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Method chaining - why is it a good practice, or not?

...general practice in my code. The point is - in 99% cases you can probably do just as well or even better without method chaining. But there is the 1% where this is the best approach. share | improv...
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How do I get the current absolute URL in Ruby on Rails?

...ou should use request.original_url to get the current URL. This method is documented at original_url method, but if you're curious, the implementation is: def original_url base_url + original_fullpath end For Rails 3: You can write "#{request.protocol}#{request.host_with_port}#{request.full...
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Limiting the number of records from mysqldump?

... What does the "1" before limit do? – Phob Jul 14 '11 at 23:29 31 ...
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When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s

...n and suitable for 99% of the real world applications. You can practically do anything with relational databases. But, there are limitations on speed and scaling when it comes to massive high availability data stores. For example, Google and Amazon have terabytes of data stored in big data centers....
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Java - get pixel array from image

...el (x, y) from the image using int[x][y] . All the methods I have found do not do this (most of them return int[] s). 7...
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NSNotificationCenter addObserver in Swift

How do you add an observer in Swift to the default notification center? I'm trying to port this line of code that sends a notification when the battery level changes. ...
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How can I know which parts in the code are never used?

...le code at once in great detail and find all the flow paths. In practice I don't know any that would work here. The pragmatic one is to use an heuristic: use a code coverage tool (in the GNU chain it's gcov. Note that specific flags should be passed during compilation for it to work properly). You r...
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How to determine if a string is a number with C++?

...g smoothly (or I accidentally edited to stop it or I'm schizophrenic or Windows is schizophrenic): 31 Answers ...
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How to temporarily exit Vim and go back

...continue running my server while editing my file. For example, let's say I do nodemon app.js (nodemon refreshes the server on file edits for you) and then I want to return to my vim editing. Can I do that without two separate terminal windows? – Costa Feb 20 '1...