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

removeItem(item) {
    const item = getItem(this.state.list, item.id) // Method to get item in list through comparison (IE: find some item with item.id), it has to return ITEM and INDEX in array
    const newlist = [].concat(list) // Clone array with concat or slice(0)
    newlist.splice(item.index, 1);
    this.setState({list: newlist});       
  }