Vanilla JavaScript filter code

Add the script into your html file with the list you wish to filter, ideally at the bottom of the page just before the closing tag.

<script type="text/javascript" src="verboseES5.js"></script>

Call the filter function passing through the ID for the text input and the class name on all the list items.

<script>
	filterList('filterInput', 'collection-item');
</script>

Example

https://chriswrightft.github.io/vanilla-js-filter-list/index.html