Attempt

Create an Attempt object with or without a given value so you can do fluent operations on the registered attempt value.

Method Signature

Attempt(value=[any])

Argument

Type

Required

Description

Default

value

any

false

The value to store as the attempt. This can be a value, or a closure/lambda that will be executed to get the value.

Wraps a value in an Attempt object for fluent error-safe operations.

attempt = attempt( 42 );
writeOutput( attempt.get() );

Result: 42

The closure is executed and its result (or exception) is captured.

attempt = attempt( () => 10 / 2 );
writeOutput( attempt.get() );

Result: 5

When the closure throws, the Attempt captures the failure instead of crashing.

attempt = attempt( () => 10 / 0 );
writeOutput( attempt.hasError() );

Result: true

result = attempt( () => "hello".len() )
    .map( (x) => x * 2 )
    .getOrDefault( 0 );
writeOutput( result );

Result: 10

Creates an empty Attempt object for later use.

attempt = attempt();
writeOutput( attempt.isEmpty() );

Result: true

Last updated 19 days ago

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