operator bind.ts

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  import {Result, ResultType} from '../result';
import {UnaryFunction} from '../../fnxt-types';
 
 
export const bind = <T, R, Err>(fn: UnaryFunction<T, Result<R, Err>>) =>
  (result: Result<T, Err>): Result<R, Err> =>
    (result.type === ResultType.Failure) ? result : fn(result.value);