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This article mainly introduces "javascript iterator case analysis". In daily operation, I believe many people have doubts about javascript iterator case analysis. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "javascript iterator case analysis". Next, please follow the editor to study!

Description

1. The object that implements the next method is called an iterator. The next method must return an IteratorResult object.

2. If some structures implement a formal Iterator interface, and can be consumed through the iterator Iterator. These structures can be called iterable objects.

Built-in iterable object

String, Array, TypedArray, Map and Set.

Example

Const a = [1,3,5]; a [Symbol.iterator] () = a.entries (); / / trueconst iter = a [Symbol.iterator] (); / / Array Iterator {} iter.next () / / {value: 1, done: false} so far, the study on "case analysis of javascript iterator" is over, hoping to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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