Replace array entry with spread syntax in one line of code?

Question

I\'m replacing an item in a react state array by using the ... spread syntax. This works:

let newImages = [...this.state.images]
newImages[4] = updatedImage
this         


        

Answer 1

use Array.slice

this.setState({images: [...this.state.images.slice(0, 3), updatedImage, ...this.state.images.slice(4)]})