Question

I am creating a small Yahtzee game and i have run into some regex problems. I need to verify certain criteria to see if they are met. The fields one to six is very straight forward the problem comes after that. Like trying to create a regex that matches the ladder. The Straight should contain one of the following characters 1-5. It must contain one of each to pass but i can’t figure out how to check for it. I was thinking /1{1}2{1}3{1}4{1}5{1}/g; but that only matches if they come in order. How can i check if they don’t come in the correct order?

Answer 1

If I understood you right, you want to check if a string contains the numbers from 1 to 5 in random order. If that is correct, then you can use:

var s = '25143';
var valid = s.match(/^[1-5]{5}$/);
for (var i=1; i<=5; i++) {
  if (!s.match(i.toString())) valid = false;
}

Or:

var s = '25143';
var valid = s.split('').sort().join('').match(/^12345$/);