开发者问题收集
为什么迭代器对象变量未定义？
学习在 Javascript 中使对象可迭代。对象是：var arrayLikeObject = {0: "hello",1: "there",2: "crappy coder",length: 3,}然后我这样做使其可迭代：arrayLikeObject[Symbol.iterator] = function(){return {current: 0, // <---- but... it IS
javascript iterable
2020-10-20