simple jquery second counter

Question

What is the simplest way to increase a variable by 1 every second?

Answer 1

var counter = 0;
setInterval(function () {
  ++counter;
}, 1000);

Additionally, if you ever need to turn it off again, this makes that possible:

var counter = 0;
var myInterval = setInterval(function () {
  ++counter;
}, 1000);

// to stop the counter
clearInterval(myInterval);

Answer 2

The simplest way is setInterval("x++",1000);, where x++ can be replaced with your increment. Example:

JavaScript/jQuery

var x=0;

setInterval("x++",1000); // Increment value every second

// Let's just add a function so that you can get the value
$(document).ready(function () {
  $("#showval").click(function(){
    alert(x);
  });
});

HTML

<a href="#" id="showval">Show value</a>