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Why is it necessary to set the prototype constructor?
In the section about inheritance in the MDN article Introduction to Object Oriented Javascript , I noticed they set the prototype.constructor:
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Add a reference column migration in Rails 4
A user has many uploads. I want to add a column to the uploads table that references the user . What should the migration look like?
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What is the difference between DSA and RSA?
It appears they are both encryption algorithms that require public and private keys. Why would I pick one versus the other to provide encryption in my client server application?
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C++ Build Systems - What to use? [closed]
I'm looking at starting a new project in C++ - just in my own time initially - and I'm investigating the build systems that are available. It would appear that the answer is "Many, and they're all awful".
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How to avoid “RuntimeError: dictionary changed size during iteration” error?
I have checked all of the other questions with the same error yet found no helpful solution =/
11 Answers
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Any way to declare an array in-line?
Let's say I have a method m() that takes an array of Strings as an argument. Is there a way I can just declare this array in-line when I make the call? i.e. Instead of:
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Rails: call another controller action from a controller
I need to call the create action in controller A, from controller B.
9 Answers
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Rails: Using greater than/less than with a where statement
I'm trying to find all Users with an id greater than 200, but I'm having some trouble with the specific syntax.
9 Answers
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What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
What is the difference between Class.forName() and Class.forName().newInstance() ?
9 Answers
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get string value from HashMap depending on key name
I have a HashMap with various keys and values, how can I get one value out?
10 Answers
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