Cleanup artifacts from node build flow

web/js/util.js

@@ -0,0 +1,18 @@
+export function isOverflown(element) {
+  return element.scrollHeight > element.clientHeight || element.scrollWidth > element.clientWidth;
+}
+
+export function setProgressBar(bar, progress, text = '') {
+  const progPos = (-1 * (1 - progress) * bar.scrollWidth).toString();
+  const progStr = (progress * 100).toString();
+  bar.setAttribute('aria-valuenow', progStr);
+  bar.style.transform = 'translateX(' + progPos + 'px)';
+  bar.textContent = text;
+}
+
+export function secondsToStr(seconds) {
+  seconds = Math.floor(seconds);
+  const mins = Math.floor(seconds / 60);
+  const secs = seconds % 60;
+  return ('00' + mins).slice(-2) + ':' + ('00' + secs).slice(-2);
+}