src copy from Markus

tatort/src/lib/helper/shortenFileSize.js

@@ -0,0 +1,22 @@
+const KILO = 1024;
+const MEGA = KILO * KILO;
+const GIGA = MEGA * KILO;
+
+/**
+ * Shortens the size in bytes
+ * @param {number} size
+ * @returns{string}
+ */
+export default function shortenFileSize(size) {
+	const giga = Math.floor(size / GIGA);
+	let remainder = size % GIGA;
+	const mega = Math.floor(remainder / MEGA);
+	remainder %= MEGA;
+	const kilo = Math.floor(remainder / KILO);
+	remainder %= KILO;
+
+	if (giga > 0) return `${giga} GB`;
+	if (mega > 0) return `${mega} MB`;
+	if (kilo > 0) return `${kilo} kB`;
+	return `${remainder} B`;
+}