Remove item from array in React

Question

I have problem with removeItem function (it should remove current

that button is nested in, and item from array on this.state.list), no code currentl

Answer 1

Removing item from array by index:

const newList = this.state.list.splice(index, 1);

Removing item from array by value:

const newList = this.state.list.splice(this.state.list.indexOf(value), 1);