Rebol Programming/attempt

USAGE: edit

ATTEMPT value 

DESCRIPTION: edit

Tries to evaluate and returns result or NONE on error.

ATTEMPT is a function value.

ARGUMENTS edit

  • value -- (Type: any)

(SPECIAL ATTRIBUTES) edit

  • throw

SOURCE CODE edit

attempt: func [
    {Tries to evaluate and returns result or NONE on error.} 
    [throw] 
    value
][
    unless error? set/any 'value try :value [get/any 'value]
]