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How to clone a case class instance and change just one field in Scala?
... def plusMsg(msg: String) = this.copy(sentMsgs = this.sentMsgs + msg)
}
then
val newPersona = existingPersona plusMsg newMsg
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Is there a recommended format for multi-line imports?
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I don't quite understand then. You quote PEP 328 as having parenthesis for multi-line imports, but they have none? "I would go with the parenthesis notation from the PEP328 with newlines added before and after parentheses:"
– Ga...
Drawing a connecting line between two elements [closed]
...is answer is applicable to both questions... If two questions are relevant then then their answers can also be relevant ... I didn't do anything incorrect ...
– Ani
Feb 12 '17 at 8:48
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Why can't I center with margin: 0 auto?
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Yup, then you can't center using margin: auto;
– PatrikAkerstrand
Jun 8 '09 at 6:36
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How to set username and password for SmtpClient object in .NET?
...use the defaults, otherwise it will first look in Credentials property and then in the web.config. If none are set it will send the email anonymously.
– TheGateKeeper
Jun 18 '13 at 10:36
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In JavaScript, is returning out of a switch statement considered a better practice than using break?
...ctice is return {1:"One",2:"Two,3:"Three"}[opt];. If you need the default then it would be var o={1:"One",2:"Two,3:"Three"}; return opt in o?o[opt]:"";
– ic3b3rg
May 24 '11 at 17:36
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Does Swift have documentation generation support?
...u can select a method like this
func foo(bar: Int) -> String { ... }
Then press command + option + / or choose "Structure" - "Add documentation" from Xcode's "Editor" menu, and it will generate the following comments template for you:
/// <#Description#>
///
/// - parameter bar: <#ba...
How can I initialize an ArrayList with all zeroes in Java?
... that. ArrayList just uses array as internal respentation. If you add more then 60 elements then underlaying array will be exapanded. How ever you can add as much elements to this array as much RAM you have.
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When should I use File.separator and when File.pathSeparator?
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If you mean File.separator and File.pathSeparator then:
File.pathSeparator is used to separate individual file paths in a list of file paths. Consider on windows, the PATH environment variable. You use a ; to separate the file paths so on Windows File.pathSeparator would b...
How can I expand the full path of the current file to pass to a command in Vim?
...that this combo displays the full path when typed in Normal mode:
Press 1 then CtrlG
Source: “Get the name of the current file” on the Vim Tips Wiki. See also the {count}CTRL-G section of :help CTRL-G.
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