From 710319c9a0ac7786ecdcb2d4d8e5b2cda50c4ce8 Mon Sep 17 00:00:00 2001
From: nprimo <primo.niccolo@gmail.com>
Date: Fri, 10 Mar 2023 16:54:11 +0000
Subject: [PATCH] feat(hash-file): clarify subject

---
 subjects/blockchain/hash-file/README.md | 26 +++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/subjects/blockchain/hash-file/README.md b/subjects/blockchain/hash-file/README.md
index 788cd2140..d2403e105 100644
--- a/subjects/blockchain/hash-file/README.md
+++ b/subjects/blockchain/hash-file/README.md
@@ -1,25 +1,31 @@
-# Hash File
+## hash-file
 
 ### Instructions
 
-Create a function `hashFile(file)` that given the name of a file in the current folder, expected to be a string, returns the hash `sha256` of the content of this file as a string.
+Create a function `hashFile(fpath)` that given the name of a file in the current folder, expected to be a string, returns the hash `sha256` of the content of this file as a string.
 
 ### Usage
 
-_textfile.txt_
+Here below an example of `main.js` script to test the usage of the `hashFile` function:
 
-```
-Sometimes science is more art than science.
+```js
+const hash = await hashFile('textfile.txt')
+console.log(hash)
 ```
 
-```js
-let hash = hashFile("textfile.txt")
-console.log(hash) 
-// expected result : 575e6ccc6aa3882344d97a8ebae4b7fc4852f9149ad14007d11164450f751eb1
+And its usage:
+
+```console
+$cat textfile.txt
+Sometimes science is more art than science.$
+Sometimes science is more art than science.
+$ node main.js
+bd9ecabfb0c9a310cbca5ef1dd6456486236ba58a1d8a4eaf2b0a40283525cd9
+$
 ```
 
 ### Notions
 
 - [Node.js _crypto_ hash](https://nodejs.org/docs/latest-v14.x/api/crypto.html#crypto_class_hash)
-- [Node.js _fs_ readFileSync](https://nodejs.org/docs/latest-v14.x/api/fs.html#fs_fs_readfilesync_path_options)
+- [Node.js _fs.readFile_](https://nodejs.org/api/fs.html#filehandlereadfileoptions)
 - [Wikipedia: Hash_function](https://en.wikipedia.org/wiki/Hash_function)