"use strict";

export default function(def) {
	if(typeof def === "string")
		return `span.fa.fa-${def}`;
	if(def instanceof Array)
		return def.map(el, i => `span.fa.fa-${el}.fa-stack-${def.length-i}x`).join(`+`);
	
	throw new Error(`Error: Expected def of type string or Array, but got variable of type ${typeof def}`);
}