Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
133 views
in Technique[技术] by (71.8m points)

javascript - Iterate over Store via Map

Via a Map Objects are added to a Svelte Store.

Every object has an ID and it should be possible to iterate over those IDs. With $entities.get("123").currentPage;

The current Page of this Object is returned.

How can I iterate over more than one ID such that the current pages of all objects in the store are returned?

question from:https://stackoverflow.com/questions/65940182/iterate-over-store-via-map

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You could take those IDs into an array, and then map that array to the code you listed in your question. For example:

function getPages(ids) {
    return ids.map(id => $entitites.get(id).currentPage);
}

// example call:
let pages = getPages(["123", "146", "195"]);

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...