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Convert seconds to Hour:Minute:Second

... animuson♦animuson 49.1k2323 gold badges127127 silver badges139139 bronze badges ...
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jQuery count child elements

... You can use .length with just a descendant selector, like this: var count = $("#selected li").length; If you have to use .children(), then it's like this: var count = $("#selected ul").children().length; You can test both versions here. ...
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How to express a NOT IN query with ActiveRecord/Rails?

...s since it seems a lot of people come to this, if you are using Rails 4 look at the answers by Trung Lê` and VinniVidiVicci. ...
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Properties vs Methods

Quick question: When do you decide to use properties (in C#) and when do you decide to use methods? 16 Answers ...
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Proper way to use **kwargs in Python

What is the proper way to use **kwargs in Python when it comes to default values? 14 Answers ...
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Given a number, find the next higher number which has the exact same set of digits as the original n

...made pretty much zero progress on my interview question. Can anyone let me know how to do this? I tried searching online but couldn't find anything: ...
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Compare object instances for equality by their attributes

...;>> x == y True Note that implementing __eq__ will automatically make instances of your class unhashable, which means they can't be stored in sets and dicts. If you're not modelling an immutable type (i.e. if the attributes foo and bar may change value within the lifetime of your object), th...
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Find out a Git branch creator

... A branch is nothing but a commit pointer. As such, it doesn't track metadata like "who created me." See for yourself. Try cat .git/refs/heads/<branch> in your repository. That written, if you're really into tracking this information in your repository, check out branch descriptions. ...
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How do I make a placeholder for a 'select' box?

I'm using placeholders for text inputs which is working out just fine. But I'd like to use a placeholder for my selectboxes as well. Of course I can just use this code: ...
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C# operator overload for `+=`?

I am trying to do operator overloads for += , but I can't. I can only make an operator overload for + . 10 Answers ...