Function removeItem

docs/examples/iteration/index.js:30–37

(item)

    var { props, state } = component;

    function removeItem(item) {
      return function() {
        let updatedItems = state.items.filter(function(target){
          return target !== item
        });
        setState({ items: updatedItems });
      }
    }

    function addItem(e){
      e.preventDefault();