Function appendToStack

test-app/public/mocha.js:2698–2703

(el)

    });
  
    function appendToStack(el) {
      // Don't call .appendChild if #mocha-report was already .shift()'ed off the stack.
      if (stack[0]) {
        stack[0].appendChild(el);
      }
    }
  
    function updateStats() {
      // TODO: add to stats