[Javascript Iterator] 1.@@iterator Whenever an object needs to be iterated (such as at the beginning of a for..of loop), its @@iteratormethod is called with no arguments, and the returned iterator is used to obtain the values to be iterated. 示例: 指定的方…
Every Array has a function which you can use to create an iterator. This function can only be accessed by using the Symbol.iterator as a key on the Array. Once you have created your iterator, you can use it to iterate through each value of the Array…
const name = { first:"hello", last:"world", fullname: "hello world" } 方式一.Object.keys for (var i of Object.keys(name)) { console.log(i,"-",name[i]) } 方法二.Object.keys + Generator function *map(item) { for (var i of O…
