use reflow to migrate from flow to typescript

scm-ui/ui-components/src/FileSize.tsx

@@ -0,0 +1,26 @@
+import React from 'react';
+
+type Props = {
+  bytes: number;
+};
+
+class FileSize extends React.Component<Props> {
+  static format(bytes: number) {
+    if (!bytes) {
+      return '0 B';
+    }
+
+    const units = ['B', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y'];
+    const i = Math.floor(Math.log(bytes) / Math.log(1000));
+
+    const size = i === 0 ? bytes : (bytes / 1000 ** i).toFixed(2);
+    return `${size} ${units[i]}`;
+  }
+
+  render() {
+    const formattedBytes = FileSize.format(this.props.bytes);
+    return <span>{formattedBytes}</span>;
+  }
+}
+
+export default FileSize;