Test migration to jest by hand

Apparently using regular expressions is way easier.

test/uncurry/uncurry.js

@@ -0,0 +1,6 @@
+const uncurry = (fn, n = 1) => (...args) => {
+const next = acc => args => args.reduce((x, y) => x(y), acc);
+if (n > args.length) throw new RangeError('Arguments too few!');
+return next(fn)(args.slice(0, n));
+};
+module.exports = uncurry;