javascript – 是否可以将ECMAScript 6生成器重置为初始状态？

我的问题是：给定提供的(非常简单的)生成器,是否可以将发生器返回到原来的状态再次使用？

var generator = function*() {
    yield 1;
    yield 2;
    yield 3;
};

var iterable = generator();

for (let x of iterable) {
    console.log(x);
}

// At this point, iterable is consumed.
// Is there a method for moving iterable back
// to the start point by only without re-calling generator(),
// (or possibly by re-calling generator(), only by using prototype 
//  or constructor methods available within the iterable object)
// so the following code would work again?

for (let x of iterable) {
    console.log(x);
}

我希望能够将迭代传递给其他范围,迭代它,做一些其他的东西,然后可以在同一范围内再次迭代.

如果你的意图是

to some other scope, iterate over it, do some other stuff, then be able to iterate over it again later on in that same scope.

那么你不应该尝试的只是传递迭代器,而是通过生成器：

var generator = function*() {
    yield 1;
    yield 2;
    yield 3;
};

var user = function(generator){

    for (let x of generator()) {
        console.log(x);
    }

    for (let x of generator()) {
        console.log(x);
    }
}

或者只是做一个“循环”迭代器,并在迭代时检查

var generator = function*() {
    while(true){
        yield 1;
        yield 2;
        yield 3;
    }
};

for( x in i ){
    console.log(x);
    if(x === 3){
        break;
    }
}