v1.2.0

• Result.safe() now accepts a error-class as parameter:

class CustomError() {}
const result = Result.safe(CustomError, () => 2 * 2);

• Result.safe() now accepts a callback which returns another Result an will merge both Results:

class CustomError() {}
function doStuff(): Result<CustomError, number> {}
const result = Result.safe(() => doStuff()); // Result<Error | CustomError, number>

• Result#map() now accepts a callback that returns another result (flat-map) or a callback that transforms the value directly:

function doStuff(): Result<CustomError, number> {}

const result = doStuff().map(num => num * 2); // Result<Error | CustomError, number>

v1.1.0

Added Result.forward()

v1.0.0

Initial release!

v0.1.0

This is the initial release!