add 2 tests, initial & initialize2DArray

test/initial/initial.test.js

@@ -5,6 +5,7 @@ test('Testing initial', (t) => {
 	//For more information on all the methods supported by tape
 	//Please go to https://github.com/substack/tape
 	t.true(typeof initial === 'function', 'initial is a Function');
+	t.deepEqual(initial([1, 2, 3]), [2, 3], "Returns all the elements of an array except the last one");
 	//t.deepEqual(initial(args..), 'Expected');
 	//t.equal(initial(args..), 'Expected');
 	//t.false(initial(args..), 'Expected');