Difference between revisions of "MediaWiki:Common.js"
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Line 8: | Line 8: | ||
}); | }); | ||
backToTop.addEventListener("transitionstart", function() { | backToTop.addEventListener("transitionstart", function() { | ||
− | backToTop. | + | backToTop.style.display = "block"; |
}); | }); | ||
backToTop.addEventListener("transitionend", function() { | backToTop.addEventListener("transitionend", function() { | ||
− | if (backToTop.style.opacity == 0) backToTop. | + | if (backToTop.style.opacity == 0) backToTop.style.display = "none"; |
}); | }); | ||
} | } |
Revision as of 01:17, 29 August 2020
/* Any JavaScript here will be loaded for all users on every page load. */
const backToTop = document.getElementById("BackToTop");
if (backToTop) {
document.addEventListener("scroll", function() {
const isVisible = window.pageYOffset > 400;
backToTop.style.opacity = isVisible ? '1' : '0';
});
backToTop.addEventListener("transitionstart", function() {
backToTop.style.display = "block";
});
backToTop.addEventListener("transitionend", function() {
if (backToTop.style.opacity == 0) backToTop.style.display = "none";
});
}