OWL slider trigger based on count

Please find below code 
var count = 2
var duration = 500;
jQuery('.owl-slider').trigger('to.owl.carousel', [count, duration, true]);

jQuery validation to allow only numbers OR only characters

Allow only numbers 
$(‘#zip’).keypress(function(event){

if(event.which != 8 && isNaN(String.fromCharCode(event.which))){

event.preventDefault();

}
});

Allow Characters with dots
$(‘#name’).keypress(function(event){

var inputValue = event.charCode;  if(!(inputValue >= 65 && inputValue <= 120) && (inputValue != 32 && inputValue != 0  && inputValue != 46)){

event.preventDefault();

}

});