Skip welcome & menu and move to editor
Welcome to JS Bin
Load cached copy from
 
<!DOCTYPE html>
<title>Range#expand() existance</title>
<script src="https://rawgit.com/w3c/testharness.js/master/testharness.js"></script>
<script src="https://rawgit.com/w3c/testharness.js/master/testharnessreport.js"></script>
<script>
test(function() {
  assert_equals(typeof Range.prototype.expand, "function");
});
</script>
Output

You can jump to the latest bin by adding /latest to your URL

Dismiss x
public
Bin info
foolippro
0viewers