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ruby - When to use lambda, when to use Proc.new?

ruby - When to use lambda, when to use Proc.new?

In Ruby 1.8, there are subtle differences between proc/lambda on the one hand, and Proc.new on the other. What are those differences? Can you give guidelines on how to decide which one to choose? In R…


Are PHP Variables passed by value or by reference?

Are PHP variables passed by value or by reference?…


c# - How to RedirectToAction in ASP.NET MVC without losing request data

Using ASP.NET MVC there are situations(such as form submission) that may require a RedirectToAction.One such situation is when you encounter validation errors after a form submission and need to redir…


language agnostic - Pass by reference or pass by value?

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, argument…


Passing multidimensional arrays as function arguments in C

In C can I pass a multidimensional array to a function as a single argument when I don't know what the dimensions of the array are going to be ? In addition my multidimensional array may contain types…


Accessing post variables using Java Servlets

What is the Java equivalent of PHP's $_POST ? After searching the web for an hour, I'm still nowhere closer.…


c# - When do Request.Params and Request.Form differ?

I recently encountered a problem where a value was null if accessed with Request.Form but fine if retrieved with Request.Params. What are the differences between these methods that could cause this?…


sql - How to pass a comma separated list to a stored procedure?

So I have a Sybase stored proc that takes 1 parameter that's a comma separated list of strings and runs a query with in in an IN() clause: CREATE PROCEDURE getSomething @keyList varchar(4096) AS SELE…



c# - ASP.NET Web Service Results, Proxy Classes and Type Conversion

I'm still new to the ASP.NET world, so I could be way off base here, but so far this is to the best of my(limited) knowledge! Lets say I have a standard business object "Contact" in the Business nam…


Is there any list datatype in MySQL stored procedures, or a way to emulate them?

I would like to create a stored procedure in MySQL that took a list as argument. For example, say that I would like to be able to set multiple tags for an item in one call, then what I want to do is…




how from parameter example function with value parameters data variable