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/* 自作のイテレータを自作のジェネレータ関数にかけてみる */ 'use strict'; const p = console.log; const generatorFunction = function* (a) { yield* a; }; const createIterableObject = () => { const iterableObject = { [Symbol.iterator]: () => { let cnt = 0; const iterator = { next: () => { if (cnt < 5) { return { value: cnt++, done: false }; } return { value: undefined, done: true }; }, }; return iterator; }, }; return iterableObject; }; const mainIteratorAndGenerator = () => { const myIterableObject = createIterableObject(); const myGenerator = generatorFunction(myIterableObject); p(...myGenerator); // 0 1 2 3 4 p(...myGenerator); // p(...myIterableObject); // 0 1 2 3 4 p(...myIterableObject); // 0 1 2 3 4 }; // module.exports = mainIteratorAndGenerator; mainIteratorAndGenerator(); |
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