Validation:
Filter:
Examples
FPLib/Classes (extension)
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FP
Validation
Extension
Applicative error handling
Examples
{ |x,y| x+y } <%> "oops".fail <*> 3.success { |x,y| x+y } <%> 2.success <*> 3.success { |x,y| x+y } <%> "oops".fail <*> "arghh".fail { |x,y| x+y } <%> ["oops"].fail <*> ["arghh"].fail { |x,y| x+y } <%> "oops".failLL <*> "arghh".failLL [2.success, "ouch".fail, 4.success].sequence [2.success, 6.success, 4.success].sequence 3.success >>= { |x| if(x < 4) { (x/2).success } { "x is not smaller then 4".fail } } 3.success >>= { |x| if(x < 1) { (x/2).success } { "x is not smaller then 4".fail } } "no value".fail >>= { |x| if(x < 4) { (x/2).success } { "x is not smaller then 4".fail } }
helpfile source:
HelpSource/Classes/Validation.schelp
link::FPLib/Classes/Validation::
