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Rails: update_attribute vs update_attributes

... send(name.to_s + '=', value) 2616: save(false) 2617: end and now refer update_attributes and look at its code you get # File vendor/rails/activerecord/lib/active_record/base.rb, line 2621 2621: def update_attributes(attributes) 2622: self.attributes = attribute...
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Checking out Git tag leads to “detached HEAD state”

I'm developing a deployment script for my git project and I just started using tags. I've added a new tag called v2.0 : 2 ...
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“Cannot evaluate expression because the code of the current method is optimized” in Visual Studio 20

I am using Visual Studio 2010 in debug mode and I have "optimize code" unchecked. I can't quick watch (or hover on) any variable in the debugger. I get this error "Cannot evaluate expression because the code of the current method is optimized". ...
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Sending message through WhatsApp

...at whatsapp doesn't support this, I was wondering if something had changed and if there is a way to open a whatsapp 'chat' with a number that I'm sending through an intent? ...
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What is the difference between pull and clone in git?

What is the difference between doing (after mkdir repo and cd repo ): 11 Answers 11...
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Detecting an undefined object property

...ined`"); } To check if an object does not actually have such a property, and will therefore return undefined by default when you try and access it: if(!o.hasOwnProperty('myProperty')) { alert("myProperty does not exist"); } To check if the value associated with an identifier is the special va...
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What is the difference between lemmatization vs stemming?

... Short and dense: http://nlp.stanford.edu/IR-book/html/htmledition/stemming-and-lemmatization-1.html The goal of both stemming and lemmatization is to reduce inflectional forms and sometimes derivationally related forms of a word t...
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What is the current choice for doing RPC in Python? [closed]

Actually, I've done some work with Pyro and RPyC, but there is more RPC implementation than these two. Can we make a list of them? ...
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Limits of Nat type in Shapeless

...n type level, e.g. append a list of N elements to a list of K elements and get back a list that is known at compile time to have N+K elements. ...
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How to enable C++11 in Qt Creator?

The title is pretty self-descriptive. I've downloaded Qt Creator 2.7.0, and I am trying to compile some basic C++11 code: 6...