Is Johnny Making Progress?

To train for an upcoming marathon, Johnny goes on one long-distance run each Saturday. He wants to track how often the number of miles he runs this Saturday exceeds the number of miles run the previous Saturday. This is called a progress day.

Create a function that takes in an array of miles run every Saturday and returns Johnny's total number of progress days.

Examples

progressDays([3, 4, 1, 2]) ➞ 2 // There are two progress days, (3->4) and (1->2)

progressDays([10, 11, 12, 9, 10]) ➞ 3

progressDays([6, 5, 4, 3, 2, 9]) ➞ 1

progressDays([9, 9]) ➞ 0

Notes

Running the same number of miles as last week does not count as a progress day.

Tests

Test = (x, y) => x == y ? console.log("Pass") || true : console.log("Fail") || false;

progressDays = x=>x;

Test(progressDays([3, 4, 1, 2]), 2);
Test(progressDays([10, 11, 12, 9, 10]), 3);
Test(progressDays([6, 5, 4, 3, 2, 9]), 1);
Test(progressDays([9, 9]), 0);
Test(progressDays([12, 11, 10, 12, 11, 13]), 2);