TitleCase.js

//Step 1: Copy/Paste this into Console
FrontendApiManager.onReady("submissionForm", function (api) {
  window.api = api;
});


//Step 2: Copy and Paste this Function and the handler 
//Define Title Case Method
function titleCase(str) {
  str = str.toLowerCase().split(' ');
  for (var i = 0; i < str.length; i++) {
    str[i] = str[i].charAt(0).toUpperCase() + str[i].slice(1); 
  }
  return str.join(' ');
}

//Call Javascript API
var titleField = api.getField("title");
titleField.onChange(function (oldVal, newVal) { titleField.setValue(titleCase(newVal)); });

//Step 3: Now type something in to the title field