performance - for...of - JavaScript keyword Internet Explorer work-around -

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i using “for...of” in many places in javascript code new technology, part of javascript’s new specification (ecmascript 2015 (e56) standard). "for...of" supported in chrome, safari , firefox. though, ie doesn’t yet support new feature (see link). best approach support these 4 main browsers - revert "for in/for loop" or use browser-sniffing code or there better hack able both use hybrid "for...of" , "for...in"? not repeat of question here: link_here because aware ie not support "for...of". looking if there hack still use , still support 4 browsers listed?

you can add traceur compiler:

<script src="https://google.github.io/traceur-compiler/bin/traceur.js"></script>  <script src="https://google.github.io/traceur-compiler/src/bootstrap.js"></script>  <script type="module">  for(var n of ['foo', 'bar'])    alert(n);  </script>

it should work on ie9.


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