Test migration to jest by hand

Apparently using regular expressions is way easier.

test/getURLParameters/getURLParameters.js

@@ -0,0 +1,6 @@
+const getURLParameters = url =>
+(url.match(/([^?=&]+)(=([^&]*))/g) || []).reduce(
+(a, v) => ((a[v.slice(0, v.indexOf('='))] = v.slice(v.indexOf('=') + 1)), a),
+{}
+);
+module.exports = getURLParameters;