Function parseCronMonth

Parses CronMonth into a string.

Example

parseCronMonth(10); // "10"
parseCronMonth("*"); // "*"
parseCronMonth({ every: 6, start: 2 }); // "2/6"
parseCronMonth([1, 2, 3, 4]); // "1,2,3,4"
parseCronMonth({ from: 1, to: 5 }); // "1-5"
parseCronMonth({ from: "JAN", to: "OCT" }); // "JAN-OCT"
parseCronMonth([1, 2, 3, { from: 5, to: 7 }]); // "1,2,3,5-7"

Returns

A string or undefined if invalid.