From 07ae5f7167bb5b492bd477a905fa44a5d711e53b Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Sat, 28 Sep 2024 22:07:39 +0200
Subject: [PATCH] Disallow var keyword

---
 eslint.config.js |  1 +
 lib/base64.js    | 16 ++++++++--------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/eslint.config.js b/eslint.config.js
index 58da9c0..7de4470 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -20,6 +20,7 @@ export default [
 				caughtErrorsIgnorePattern: "^_",
 				destructuredArrayIgnorePattern: "^_",
 			}],
+			"no-var": "error",
 		},
 	},
 ];
diff --git a/lib/base64.js b/lib/base64.js
index 57d878a..3aba7ad 100644
--- a/lib/base64.js
+++ b/lib/base64.js
@@ -12,13 +12,13 @@ export function encode(data) {
 		return btoa(data);
 	}
 
-	var encoder = new TextEncoder();
-	var bytes = encoder.encode(data);
+	let encoder = new TextEncoder();
+	let bytes = encoder.encode(data);
 
-	var trailing = bytes.length % 3;
-	var out = "";
-	for (var i = 0; i < bytes.length - trailing; i += 3) {
-		var u24 = (bytes[i] << 16) + (bytes[i + 1] << 8) + bytes[i + 2];
+	let trailing = bytes.length % 3;
+	let out = "";
+	for (let i = 0; i < bytes.length - trailing; i += 3) {
+		let u24 = (bytes[i] << 16) + (bytes[i + 1] << 8) + bytes[i + 2];
 		out += alphabet[(u24 >> 18) & 0x3F];
 		out += alphabet[(u24 >> 12) & 0x3F];
 		out += alphabet[(u24 >> 6) & 0x3F];
@@ -26,12 +26,12 @@ export function encode(data) {
 	}
 
 	if (trailing == 1) {
-		var u8 = bytes[bytes.length - 1];
+		let u8 = bytes[bytes.length - 1];
 		out += alphabet[u8 >> 2];
 		out += alphabet[(u8 << 4) & 0x3F];
 		out += "==";
 	} else if (trailing == 2) {
-		var u16 = (bytes[bytes.length - 2] << 8) + bytes[bytes.length - 1];
+		let u16 = (bytes[bytes.length - 2] << 8) + bytes[bytes.length - 1];
 		out += alphabet[u16 >> 10];
 		out += alphabet[(u16 >> 4) & 0x3F];
 		out += alphabet[(u16 << 2) & 0x3F];