Compare ISO 8601 date strings in javascript

Question

I want to compare ISO 8601 dates in javascript as strings instead of making Date objects for each string and comparing objects.

var date_array = [\'2012-10-01\         


        

Answer 1

Using that comparison operator will look at the strings values lexicographically, which means the dictionary order.

In ASCII, the decimal digits are sequentially stored smallest (0, 0x30) to largest (9, 0x39). If they're consistently in this format, largest value (year) to smallest (day) and always 0 padded to the largest possible value, then these comparisons will be fine.