function searchList(option) {
  if (option == "biggest") {
    //Biggest by Population
    var index = -1;
    for (var i = 0; i < stateSize.length; i++) {
      if (stateSize[i] == 1) {
        index = i;
        var resultBiggestState = stateName[index];
        return resultBiggestState;
      }
    }
  } else if (option == "recentlyFounded") {
    //Most Recently Founded
    var index = -1;
    for (var i = 0; i < stateFounded.length; i++) {
      if (stateFounded[i] == 1959) {
        index = i;
        var resultState = stateName[index];
        return resultState;
      }
    }
  } else {
    //If there is an error when the user clicks button
    setText("result", "There has been an undefined error");
  }
}

var stateFounded = getColumn("US States", "Admission Year");
var stateSize = getColumn("US States", "Population Rank");
var stateName = getColumn("US States", "State Name");
onEvent("biggestButton", "click", function() {
  var stateBiggestName = searchList("biggest");
  setText("result", "The biggest state by population is" + " " + stateBiggestName);
});
onEvent("recentlyFoundedButton", "click", function() {
  var stateFoundedName = searchList("recentlyFounded");
  setText("result", "The most recently founded state was" + " " + stateFoundedName);
});