36 lines
845 B
JavaScript
36 lines
845 B
JavaScript
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window.addEventListener('DOMContentLoaded', () => {
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ILS.utils = {
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...ILS.utils,
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back2TopButton_dom: document.querySelector('.scroll-to-top'),
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back2top() {
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const scrollTopTimer = setInterval(function () {
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let top = document.body.scrollTop || document.documentElement.scrollTop;
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let speed = top / 2;
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if (document.body.scrollTop !== 0) {
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document.body.scrollTop -= speed;
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} else {
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document.documentElement.scrollTop -= speed;
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}
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if (top === 0) {
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clearInterval(scrollTopTimer);
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}
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}, 30);
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},
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initBack2TopButton() {
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if (ILS.utils.back2TopButton_dom) {
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ILS.utils.back2TopButton_dom.addEventListener('click', () => {
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this.back2top();
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});
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}
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},
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}
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ILS.utils.initBack2TopButton();
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});
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