Tests if an arbitrary value is a Result instance.
This API is still experimental, so it may change or be removed in future versions. You should not rely on it for production applications.
Tests if an arbitrary value is a Result instance.
const Result = require('folktale/result');
Result.hasInstance({ value: 1 });
// ==> false
Result.hasInstance(Result.Ok(1));
// ==> true
Result.hasInstance(Result.Error(1));
// ==> true
hasInstance(value) {
return Boolean(value)
&& value[TYPE] === this[TYPE];
}