code: function (str) {
      var output = [];
      var idx = 0;
      var c, num;
  
      var nextNumber = function () {
        var chars = [];
  
        while (/[^-\d\.]/.test(str.charAt(idx))) {
          // skip the non-digit characters
          idx++;
        }
  
        if ('-' === str.charAt(idx)) {
          chars.push('-');
          idx++;
        }
  
        while ((c = str.charAt(idx)) && /[\d\.Ee]/.test(c)) {
          chars.push(c);
          idx++;
        }
  
        return parseFloat(chars.join(''));
      };
  
      while (!isNaN(num = nextNumber())) output.push(num);
  
      return output;
    }
docs: Helper - get arguments of a path drawing command