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Build vs new in Rails 3

...rm.client.new is creating a new Client object from the clients collection, and so it can automatically set the firm_id to some_firm.id, whereas the docs are calling Client.new which has no knowledge of any Firm's id at all, so it needs the firm_id passed to it. The only difference between some_firm...
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Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?

If I understand correctly, each and every object in Javascript inherits from the Object prototype, which means that each and every object in Javascript has access to the hasOwnProperty function through its prototype chain. ...
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Error message “Forbidden You don't have permission to access / on this server” [closed]

I have configured my Apache by myself and have tried to load phpMyAdmin on a virtual host, but I received: 34 Answers ...
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Call by name vs call by value in Scala, clarification needed

As I understand it, in Scala, a function may be called either 16 Answers 16 ...
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Does MySQL index foreign key columns automatically?

... I really couldn't answer that. You may want to look up the Maria and Falcon storage engines that are to be released in MySQL 6.0 and see if they support foreign keys on non-indexed columns. – Grant Limberg Nov 20 '08 at 6:08 ...
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How to terminate script execution when debugging in Google Chrome?

...h Menu → More Tools → Task Manager You can select your page task and end it by pressing "End Process" button. share | improve this answer | follow |...
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What is the fastest way to compute sin and cos together?

I would like to compute both the sine and co-sine of a value together (for example to create a rotation matrix). Of course I could compute them separately one after another like a = cos(x); b = sin(x); , but I wonder if there is a faster way when needing both values. ...
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First-time database design: am I overengineering? [closed]

I'm a first year CS student and I work part time for my dad's small business. I don't have any experience in real world application development. I have written scripts in Python, some coursework in C, but nothing like this. ...
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Identifying and removing null characters in UNIX

...nulls If you are wondering if input redirection in the middle of the command arguments works, it does. Most shells will recognize and deal with I/O redirection (<, >, …) anywhere in the command line, actually. shar...
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How is location accuracy measured in Android?

..., as the docs say, is not necessarily true), that means that this is one standard deviation. For example, if Location.getAccuracy returns 10, then there's a 68% chance the true location of the device is within 10 meters of the reported coordinates. http://developer.android.com/reference/android/loc...