I've been exploring with javascript anonymous & arrow functions, and found this quite an interesting puzzle: what are the return types of these functions? Bonus points for an explanation of how some of these work (or not)
export const values = { key: 'value', getKey: function () { return function() { return this.key; } }, getKeyArrow: function () { return () => this.key; }, getKeyArrowCall: function () { return (() => this.key)(); } }; const v1 = values.getKey(); // function v1(); // undefined const v2 = values.getKeyArrow(); // function const v3 = values.getKeyArrowCall(); // value Edit: I changed getKey to be a bit more difficult. The previous version executed return this.key;
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