Older versions of javascript offered the assurance of a promise

Working with TypeScript and the latest ECMAScript 6 feature Promise at the moment. I'm wondering if it's possible to use Promise even if my TypeScript code is compiled into an ECMAScript 3 js-file, considering that Promise wasn't available in that version.

Answer №1

If you need to support older browsers, consider using a polyfill:

https://www.npmjs.com/package/es6-promise-polyfill

To add the polyfill:

bower install es6-promise-polyfill

Then, include it in your code like this:

<script src="bower_components/es6-promise-polyfill/promise.min.js"></script>
<script>
  var promise = new Promise(...);
</script>

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