title: In Javascript, is it expensive to use try-catch blocks even if an exception is never thrown?
body: <p>Is it "slow" to use several try-catch blocks when no exceptions are thrown in any of them? My question is the same as <a href="https://stackoverflow.com/questions/16451777/is-it-expensive-to-use-try-catch-blocks-even-if-an-exception-is-never-thrown">this one</a>, but for JavaScript.</p>
  
  <p>Suppose I have 20 functions which have try-catch blocks in them and another function that calls every one of those 20 functions <strong>where none of them throw an exception</strong>. Will my code execute slower or perform much worse because of this try-catch blocks?</p>