Modern Optional ValueOr

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ValueOr

Returns the value, or the fallback you pass if the Optional is empty.

Syntax

ValueOr( byref dflt as T ) byref as T

Examples

#import "std/outcome"
using outcome

dim some_ as Optional( of integer ) = Some( 42 )
dim none_ as Optional( of integer ) = None( of integer )( )

dim as integer fallback = -1

print some_.ValueOr( fallback )    '' 42
print none_.ValueOr( fallback )    '' -1

'' Never raises, so no HasValue( ) guard is needed

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Library: Optional
Category: Optional
Documented under: Members