How to run function first time and then through time?

There is a function that runs every 30 seconds, but how to do that would be the first time she had run from?
var get_comm_func = setInterval(function() {
jQuery.ajax({
 type: "POST",
 url: "https://site.com",
 data: {id: id},
 success: function(data) {
$('#comment').html(");
 $.each(JSON.parse(data), function(key, value){
$('#comment').append('blabla');
});
}
});
 }, 30000);
July 8th 19 at 16:45
0 answer

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