diff --git a/js/src/utils/asyncForEach.ts b/js/src/utils/asyncForEach.ts
index f0f4ee976..ca3b9d27a 100644
--- a/js/src/utils/asyncForEach.ts
+++ b/js/src/utils/asyncForEach.ts
@@ -1,11 +1,9 @@
 async function asyncForEach(
   array: Array<any>,
-  // eslint-disable-next-line no-unused-vars
   callback: (arg0: any, arg1: number, arg2: Array<any>) => void
 ): Promise<void> {
   for (let index = 0; index < array.length; index += 1) {
-    // eslint-disable-next-line no-await-in-loop
-    await callback(array[index], index, array);
+    callback(array[index], index, array);
   }
 }
 
diff --git a/js/src/utils/datetime.ts b/js/src/utils/datetime.ts
index 8988b7c87..ae490fb62 100644
--- a/js/src/utils/datetime.ts
+++ b/js/src/utils/datetime.ts
@@ -22,16 +22,39 @@ function localeShortWeekDayNames(): string[] {
 }
 
 // https://stackoverflow.com/a/18650828/10204399
-function formatBytes(bytes: number, decimals = 2, zero = "0 Bytes"): string {
-  if (bytes === 0) return zero;
+function formatBytes(
+  bytes: number,
+  decimals = 2,
+  locale: string | undefined = undefined
+): string {
+  const formatNumber = (value = 0, unit = "byte") =>
+    new Intl.NumberFormat(locale, {
+      style: "unit",
+      unit,
+      unitDisplay: "long",
+    }).format(value);
+
+  if (bytes === 0) return formatNumber(0);
+  if (bytes < 0 || bytes > Number.MAX_SAFE_INTEGER) {
+    throw new RangeError(
+      "Number mustn't be negative and be inferior to Number.MAX_SAFE_INTEGER"
+    );
+  }
 
   const k = 1024;
   const dm = decimals < 0 ? 0 : decimals;
-  const sizes = ["Bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
+  const sizes = [
+    "byte",
+    "kilobyte",
+    "megabyte",
+    "gigabyte",
+    "terabyte",
+    "petabyte",
+  ];
 
   const i = Math.floor(Math.log(bytes) / Math.log(k));
 
-  return `${parseFloat((bytes / k ** i).toFixed(dm))} ${sizes[i]}`;
+  return formatNumber(parseFloat((bytes / k ** i).toFixed(dm)), sizes[i]);
 }
 
 function roundToNearestMinute(date = new Date()) {