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What is the difference between map and flatMap and a good use case for each?
...g from a collection of lines to a collection of words looks like:
["aa bb cc", "", "dd"] => [["aa","bb","cc"],[],["dd"]] => ["aa","bb","cc","dd"]
The input and output RDDs will therefore typically be of different sizes for flatMap.
If we had tried to use map with our split function, we'd h...
How does a public key verify a signature?
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ShadowmanShadowman
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How do I pass multiple parameters into a function in PowerShell?
...idateScript. This takes a script block that must evaluate to $true, so the sky is the limit. For example:
function Get-Something
{
Param
(
[Parameter(Mandatory=$true, Position=0)]
[ValidateScript({ Test-Path $_ -PathType 'Leaf' })]
[ValidateScript({ (Get-Item $_ |...
How do I force make/GCC to show me the commands?
... chrisaycockchrisaycock
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Web colors in an Android color xml resource file
...r>
<color name="Bisque">#FFE4C4</color>
<color name="Moccasin">#FFE4B5</color>
<color name="NavajoWhite">#FFDEAD</color>
<color name="PeachPuff">#FFDAB9</color>
<color name="Gold">#FFD700</color>
<color name="Pink">#FFC0CB<...
互联网运营人员必备的12款工具 - 资讯 - 清泛网 - 专注C/C++及内核技术
...文档同时拥有网页端和微信端，App正在内测，即使你不在电脑前，在手机上也可以处理一切工作。
3. 表单和联系人管理工具
麦客CRM
麦客CRM是一款免费用来对用户信息进行收集管理以及拓展新用户的轻态表单工具。你可以在...
In which scenario do I use a particular STL container?
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YSC
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answered Jan 23 '09 at 16:35
David ThornleyDavid...
How do I clear/delete the current line in terminal?
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bluTazbluTaz
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Eclipse returns error message “Java was started but returned exit code = 1”
...swered Mar 27 '14 at 21:17
blue-skyblue-sky
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Show just the current branch in Git
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677
$ git rev-parse --abbrev-ref HEAD
master
This should work with Git 1.6.3 or newer.
...