From 72b4956049769b99305b8934ec5448ab4184181f Mon Sep 17 00:00:00 2001
From: Luke Karrys <luke@lukekarrys.com>
Date: Sun, 11 Dec 2022 18:39:03 -0700
Subject: [PATCH] fix: replace substr with slice

---
 lib/index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index 599a617..368f727 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -93,7 +93,7 @@ class MuteStream extends Stream {
       // eslint-disable-next-line no-control-regex
       if (c.match(/^\u001b/)) {
         if (c.indexOf(this._prompt) === 0) {
-          c = c.substr(this._prompt.length)
+          c = c.slice(this._prompt.length)
           c = c.replace(/./g, this.replace)
           c = this._prompt + c
         }
@@ -104,7 +104,7 @@ class MuteStream extends Stream {
           c.indexOf(this._prompt) === 0) {
           this._hadControl = false
           this.emit('data', this._prompt)
-          c = c.substr(this._prompt.length)
+          c = c.slice(this._prompt.length)
         }
         c = c.toString().replace(/./g, this.replace)
       }