JSFiddle - React, Tailwind, and code Playground

JavaScript

function testData() {
  var anArray = ["hello", "can", "you", "hear", "me"];
  var firstObj = {};
  for (var i = 0; i < anArray.length; i++) {
    firstObj[anArray[i]] = 0;
  }
  return firstObj;
}

alert(JSON.stringify(testData()));