text: 
  
  $(document).ready(function() {
  $("button").click(function() {
      $("img").hide(); 
  });
  
  $("button").dblclick(function(){
      $("img").show();
  });
  
  });
  
  
  
  var name = "Christine";
  var age = 27;
  console.log(name + " " + age);
  alert( name + " " + age);
  prompt( "What is your name?");
  function firstFunction() {
      var newAge = 37
      console.log (name + " " + age + newAgeOfMine)
  };
  firstFunction()
  
  
  
  
  function myFunction() {
      var x = document.getElementById("myDIV");
      if (x.style.display === "none") {
          x.style.display = "block";
      } else {
          x.style.display = "none";
      }
  }