Is there a way to add a variable to the existing ones at every new function run, without losing the old ones?
Function example:
// this div value gets changes by an other click event
<div class="data">204</div>
$(".button").on('click', function(){
var data = $('.data').text();
var dataCollection = data + data; // + new data, the old ones should not be deleted
console.log(dataCollection); // here I wanna see a list of all data
});
Do not redefine the variable each time. What you are doing would make more sense as an array.
var dataCollection = [];
$(".button").on('click', function(){
var data = $('.data').text();
dataCollection.push(data)
console.log(dataCollection);
});