ran npm run tdd & generated TDD

test/primes/primes.js

@@ -0,0 +1,7 @@
+module.exports = num => {
+let arr = Array.from({ length: num - 1 }).map((x, i) => i + 2),
+sqroot = Math.floor(Math.sqrt(num)),
+numsTillSqroot = Array.from({ length: sqroot - 1 }).map((x, i) => i + 2);
+numsTillSqroot.forEach(x => (arr = arr.filter(y => y % x !== 0 || y == x)));
+return arr;
+};

test/primes/primes.test.js

@@ -0,0 +1,13 @@
+const test = require('tape');
+const primes = require('./primes.js');
+
+test('Testing primes', (t) => {
+	//For more information on all the methods supported by tape
+	//Please go to https://github.com/substack/tape
+	t.true(typeof primes === 'function', 'primes is a Function');
+	//t.deepEqual(primes(args..), 'Expected');
+	//t.equal(primes(args..), 'Expected');
+	//t.false(primes(args..), 'Expected');
+	//t.throws(primes(args..), 'Expected');
+	t.end();
+});