Finds all elements with matching class name starting with a string prefix.
npm install class-name-starting-with> Finds all element starting with string. Queries the DOM for '[class*="string"]'.
``js`
var classNameStartingWith = require('class-name-starting-with');
classNameStartingWith('prefix__', el);
// => [HTMLElement]
Returns an array with the elements with class name matching string.
#### string
Type: string
#### rootElement
Type: undefined, HTMLElement`