in public/js/learn.js [304:324]
scrollIfAnchor: function (href, pushToHistory) {
var match, anchorOffset;
if (!this.ANCHOR_REGEX.test(href)) {
return false;
}
match = document.getElementById(href.slice(1));
if (match) {
anchorOffset = $(match).offset().top - this.getFixedOffset();
$('html, body').animate({ scrollTop: anchorOffset });
// Add the state to history as-per normal anchor links
if (HISTORY_SUPPORT && pushToHistory) {
history.pushState({}, document.title, location.pathname + href);
}
}
return !!match;
},