expand cache key computation (skip ci)

Author: developit

src/index.mjs

@@ -14,7 +14,11 @@
 const CACHE = {};
 
 export default function html(statics) {
-	const key = statics.reduce((key, s) => key + s.length + '$' + s, '');
+	let key = '';
+	for (let i=0; i<statics.length; i++) {
+		key += statics[i].length + '$' + statics[i];
+	}
+
 	const tpl = CACHE[key] || (CACHE[key] = build(statics));
 	// eslint-disable-next-line prefer-rest-params
 	return tpl(this, arguments);