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javascript detect when number of elements change

TC5550 answered on July 1, 2020 Popularity 9/10 Helpfulness 5/10

answer javascript detect when number of elements change

javascript detect when number of elements change

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const targetNode = document.body;
const config = { childList: true, subtree: true };

const callback = function(mutationsList, observer) {
    for(let mutation of mutationsList) {
        if (mutation.type === 'childList') {
            // Elements have changed
        }
    }
};

const observer = new MutationObserver(callback);
observer.observe(targetNode, config);

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: detect elements javascript when

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Contributed on Jul 01 2020

TC5550

0 Answers Avg Quality 2/10

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javascript detect when number of elements change

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