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Is there a difference between foreach and map?

Ok this is more of a computer science question, than a question based on a particular language, but is there a difference between a map operation and a foreach operation? Or are they simply different names for the same thing? ...
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How do I add the contents of an iterable to a set?

What is the "one [...] obvious way" to add all items of an iterable to an existing set ? 6 Answers ...
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How do I get a file extension in PHP?

This is a question you can read everywhere on the web with various answers: 28 Answers ...
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Is there an easy way to create ordinals in C#?

Is there an easy way in C# to create Ordinals for a number? For example: 21 Answers ...
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Keep overflow div scrolled to bottom unless user scrolls up

I have a div that is only 300 pixels big and I want it to when the page loads scroll to the bottom of the content. This div has content dynamically added to it and needs to stay scrolled all the way down. Now if the user decides to scroll up I don't want it to jump back to the bottom until the user ...
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Return array in a function

I have an array int arr[5] that is passed to a function fillarr(int arr[]) : 19 Answers ...
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Ruby: How to post a file via HTTP as multipart/form-data?

I want to do an HTTP POST that looks like an HMTL form posted from a browser. Specifically, post some text fields and a file field. ...
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C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术

...客户端Linux下select函数实现的聊天服务器消息缓冲区类MessageBuffer,接收线程将受到的消息放入缓冲区,发送线程从缓冲区中取出消息MessageBuffe...目录: Linux下select函数实现的聊天服务器 基于WSAAsyncSelect模型实现的聊天室图形客...
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Regex to test if string begins with http:// or https://

I'm trying to set a regexp which will check the start of a string, and if it contains either http:// or https:// it should match it. ...
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Get just the filename from a path in a Bash script [duplicate]

How would I get just the filename without the extension and no path? 6 Answers 6 ...