@amphibian/is-undefined

undefined type checker

Usage no npm install needed!

<script type="module">
  import amphibianIsUndefined from 'https://cdn.skypack.dev/@amphibian/is-undefined';
</script>

README

is-undefined

undefined type checker

npm install @amphibian/is-undefined

var isUndefined = require('@amphibian/is-undefined');

isUndefined(undefined); // > true
isUndefined('hello'); // > false