title: What do the following Javascript statements return and why?
body: <p>I am learning JavaScript and was asked this question, can anyone help? What do the following Javascript statements return and why?</p>
  
  <p>parseInt("07");
  parseInt("09");
  parseInt("010");</p>
  
  <p>"1" + 2 + 3;</p>
  
  <p>"1" == 1;
  "1" === 1;
  "1" == true;
  "1" === false;</p>