code: function stringOrArrayDifferent(o, o1) {
  	var different = false
  
  	// check if same
  	// note: two arrays will not be same even if values are same
  	if (o != o1) {
  		if (Array.isArray(o) && Array.isArray(o1) &&
  			o.length == o1.length) {
  
  			// two arrays of the same length: examine elements
  			// loop until true is returned
  			different = o.some(function(element, index) {
  				return element != o1[index]
  			})
  		} else different = true
  	}
  	return different
  }
docs: compare launch commands: array of string