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showing results for - "javascript detect when number of elements change"
Aerona
03 Oct 2020
1const targetNode = document.body;
2const config = { childList: true, subtree: true };
3
4const callback = function(mutationsList, observer) {
5    for(let mutation of mutationsList) {
6        if (mutation.type === 'childList') {
7            // Elements have changed
8        }
9    }
10};
11
12const observer = new MutationObserver(callback);
13observer.observe(targetNode, config);
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