Help us understand the problem. What is going on with this article?

mapstatetopropsの偉大さを知った話

More than 1 year has passed since last update.

reduxを使っているときにstoreの中身を見てみるとstateがjson形式で並んでるだけでなくそれを管理する新たなキーが作られていて謎だった

調べてみるとmapstatetopropsの時に指定していたものであった。

const mapStateToProps = (state) => {
    const { imageUrl, text } =  state.employeeForm;
    return { imageUrl, text };
}

みたいな感じで。

こうするとemployeeFormというキーに対するヴァリューの中にimageUrlとtextの ハッシュが格納される様になる。

Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
Comments
No comments
Sign up for free and join this conversation.
If you already have a Qiita account
Why do not you register as a user and use Qiita more conveniently?
You need to log in to use this function. Qiita can be used more conveniently after logging in.
You seem to be reading articles frequently this month. Qiita can be used more conveniently after logging in.
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
ユーザーは見つかりませんでした