JSFiddle - React, Tailwind, and code Playground

JavaScript

function getNextMember(array, startIndex) {
   startIndex = startIndex || 0;

   return function() {
      startIndex++;  
      return array[startIndex];
   };

};

var word = [
   'is',
   'am',
   'a'
];


var getNextWord = getNextMember(word);

alert(getNextWord() + ' ' + getNextWord());