解构和克隆 object / 一行？

Question

I'm using react.js , and I want to obtain from the state an array, but I required to clone it and save it into a const . I can do it with two lines of code; exists a way to do it in a single line of code?

Example:

const { data } = this.state
const newData = [...data]

FYI, I'm using eslint, and with "parser": "babel-eslint" config and VSC show me a warning if I'm trying to do this:

const data = [...this.state.data]

Warning message: Must use destructuring state assignments - lint react / destructuring-assignment

I don't want to remove/customize the rules of eslint... but I don't want to extend the code more than necessary.

Any suggestion?

Answer 1

Here's how you can create an Array slice of this.state.data through destructuring all in one line:

const { data: [...newData] } = this.state

Caveat, this is not a deep clone if you're expecting that. It's just a new Array referencing the original Array items.

Note that I think your eslint rules are insane to require using destructuring. It's not always the best solution.