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scala operator

Clumsy Cod answered on August 31, 2022 Popularity 7/10 Helpfulness 5/10

answer scala operator

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scala operator

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import scala._    // Wild card -- all of Scala is imported
import scala.{ Predef => _, _ } // Exception, everything except Predef
def f[M[_]]       // Higher kinded type parameter
def f(m: M[_])    // Existential type
_ + _             // Anonymous function placeholder parameter
m _               // Eta expansion of method into method value
m(_)              // Partial function application
_ => 5            // Discarded parameter
case _ =>         // Wild card pattern -- matches anything
f(xs: _*)         // Sequence xs is passed as multiple parameters to f(ys: T*)
case Seq(xs @ _*) // Identifier xs is bound to the whole matched sequence

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Source: stackoverflow.com

Tags: scala whatever

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Contributed on Aug 31 2022

Clumsy Cod

0 Answers Avg Quality 2/10

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// Keywords
<-  // Used on for-comprehensions, to separate pattern from generator
=>  // Used for function types, function literals and import renaming

// Reserved
( )        // Delimit expressions and parameters
[ ]        // Delimit type parameters
{ }        // Delimit blocks
.          // Method call and path separator
// /* */   // Comments
#          // Used in type notations
:          // Type ascription or context bounds
<: >: <%   // Upper, lower and view bounds
<? <!      // Start token for various XML elements
" """      // Strings
'          // Indicate symbols and characters
@          // Annotations and variable binding on pattern matching
`          // Denote constant or enable arbitrary identifiers
,          // Parameter separator
;          // Statement separator
_*         // vararg expansion
_          // Many different meanings

Popularity 7/10 Helpfulness 5/10 Language whatever

Source: stackoverflow.com

Tags: scala whatever

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Contributed on Aug 31 2022

Clumsy Cod

0 Answers Avg Quality 2/10

scala operator

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->    // Automatically imported method
||=   // Syntactic sugar
++=   // Syntactic sugar/composition or common method
<=    // Common method
_._   // Typo, though it's probably based on Keyword/composition
::    // Common method
:+=   // Common method

Popularity 7/10 Helpfulness 5/10 Language whatever

Source: stackoverflow.com

Tags: scala whatever

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Contributed on Aug 31 2022

Clumsy Cod

0 Answers Avg Quality 2/10

scala operator

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