initial commit

src/util/common.js

@@ -0,0 +1,21 @@
+export function bytesToSize(bytes) {
+  const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
+  if (bytes === 0) return 'n/a';
+  const i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)), 10);
+  if (i === 0) return `${bytes} ${sizes[i]}`;
+  return `${(bytes / (1024 ** i)).toFixed(1)} ${sizes[i]}`;
+}
+
+export function diffMinutes(dt2, dt1) {
+  let diff = (dt2.getTime() - dt1.getTime()) / 1000;
+  diff /= 60;
+  return Math.abs(Math.round(diff));
+}
+
+export function isNotInSameDay(dt2, dt1) {
+  return (
+    dt2.getDay() !== dt1.getDay()
+    || dt2.getMonth() !== dt1.getMonth()
+    || dt2.getYear() !== dt1.getYear()
+  );
+}