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What's the difference between Sender, From and Return-Path?

What's the difference between an email Sender, From and Return-Path value? 3 Answers 3...
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express.js - single routing handler for multiple routes in a single line

Is there a way to make this on a single function call? 6 Answers 6 ...
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List tables in a PostgreSQL schema

When I do a \dt in psql I only get a listing of tables in the current schema ( public by default). 4 Answers ...
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What is the difference between “AS” and “IS” in an Oracle stored procedure?

I see Oracle procedures sometimes written with "AS", and sometimes with "IS" keyword. 6 Answers ...
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Get value of dynamically chosen class constant in PHP

I would like to be able to do something like this: 7 Answers 7 ...
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How does Haskell printf work?

Haskell's type safety is second to none only to dependently-typed languages. But there is some deep magic going on with Text.Printf that seems rather type-wonky. ...
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fork() branches more than expected?

Consider the following piece of code: 3 Answers 3 ...
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How to execute PHP code from the command line?

I would like to execute a single php statement like if(function_exists("my_func")) echo 'function exists'; directly with the command line without having to use a seperate php file. ...
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iPhone - Get Position of UIView within entire UIWindow

The position of a UIView can obviously be determined by view.center or view.frame etc. but this only returns the position of the UIView in relation to it's immediate superview. ...
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Showing data values on stacked bar chart in ggplot2

I'd like to show data values on stacked bar chart in ggplot2. Here is my attempted code 2 Answers ...