Fix small warning in app.js + Add useful methods to html.js + Add maths.js to utils + Build

assets/scripts/app.js

@@ -10,6 +10,6 @@ const app = new modular({
 app.init(app);
 globals();
 
-html.classList.add('is-loaded is-ready');
+html.classList.add('is-loaded', 'is-ready');
 html.classList.remove('is-loading');
 

assets/scripts/utils/html.js

@@ -94,3 +94,48 @@ export function getData(data) {
 
     return data;
 }
+
+/**
+ * Returns an array containing all the parent nodes of the given node
+ * @param  {object} node
+ * @return {array} parent nodes
+ */
+export function getParents(elem) {
+    // Set up a parent array
+    let parents = [];
+
+    // Push each parent element to the array
+    for ( ; elem && elem !== document; elem = elem.parentNode ) {
+        parents.push(elem);
+    }
+
+    // Return our parent array
+    return parents;
+}
+
+// https://gomakethings.com/how-to-get-the-closest-parent-element-with-a-matching-selector-using-vanilla-javascript/
+export function queryClosestParent(elem, selector) {
+
+    // Element.matches() polyfill
+    if (!Element.prototype.matches) {
+        Element.prototype.matches =
+            Element.prototype.matchesSelector ||
+            Element.prototype.mozMatchesSelector ||
+            Element.prototype.msMatchesSelector ||
+            Element.prototype.oMatchesSelector ||
+            Element.prototype.webkitMatchesSelector ||
+            function(s) {
+                var matches = (this.document || this.ownerDocument).querySelectorAll(s),
+                    i = matches.length;
+                while (--i >= 0 && matches.item(i) !== this) {}
+                return i > -1;
+            };
+    }
+
+    // Get the closest matching element
+    for ( ; elem && elem !== document; elem = elem.parentNode ) {
+        if ( elem.matches( selector ) ) return elem;
+    }
+    return null;
+
+};

assets/scripts/utils/maths.js

@@ -0,0 +1,3 @@
+export function lerp(start, end, amt){
+    return (1 - amt) * start + amt * end
+}