s-panferov

interface Option<T> {
    map <U>(fn: (a: T) => U): Option<U>;
    isSome(): boolean;
    isNone(): boolean;
    isSomeAnd(fn: (a: T) => boolean): boolean;
    isNoneAnd(fn: () => boolean): boolean;
    unwrap(): T;
    unwrapOr(def: T): T;
    unwrapOrElse(f: () => T): T;
    map<U>(f: (a: T) => U): Option<U>;

aras-p

// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,