Change to using arrow functions (#1603)

* Change to using arrow functions

Co-authored-by: v1b3m <vibenjamin6@gmail.com>
Co-authored-by: Matheus <matheus_benini@hotmail.com>

* Add lint rule

---------

Co-authored-by: v1b3m <vibenjamin6@gmail.com>
Co-authored-by: Matheus <matheus_benini@hotmail.com>
Co-authored-by: Charles Bochet <charles@twenty.com>

server/src/utils/anonymize.ts

@@ -1,6 +1,6 @@
 import crypto from 'crypto';
 
-export function anonymize(input: string) {
+export const anonymize = (input: string) => {
   // md5 shorter than sha-256 and collisions are not a security risk in this use-case
   return crypto.createHash('md5').update(input).digest('hex');
-}
+};

server/src/utils/assert.ts

@@ -23,6 +23,5 @@ export const assert: Assert = (condition, message, ErrorType) => {
   }
 };
 
-export function assertNotNull<T>(item: T): item is NonNullable<T> {
-  return item !== null && item !== undefined;
-}
+export const assertNotNull = <T>(item: T): item is NonNullable<T> =>
+  item !== null && item !== undefined;

server/src/utils/stream-to-buffer.ts

@@ -1,6 +1,6 @@
 import { Readable } from 'stream';
 
-export async function streamToBuffer(stream: Readable): Promise<Buffer> {
+export const streamToBuffer = async (stream: Readable): Promise<Buffer> => {
   const chunks: any[] = [];
 
   for await (const chunk of stream) {
@@ -8,4 +8,4 @@ export async function streamToBuffer(stream: Readable): Promise<Buffer> {
   }
 
   return Buffer.concat(chunks);
-}
+};