From 6c2860473d615db1dd5ab7fde082d1210e006b0c Mon Sep 17 00:00:00 2001
From: gouguoyin <245629560@qq.com>
Date: Tue, 19 Apr 2022 23:50:59 +0800
Subject: [PATCH] optimize code

---
 comparer.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/comparer.go b/comparer.go
index 8c4beade..935feb42 100755
--- a/comparer.go
+++ b/comparer.go
@@ -264,7 +264,7 @@ func (c Carbon) IsYesterday() bool {
 	if c.IsInvalid() {
 		return false
 	}
-	return c.ToDateString() == Now().SubDay().ToDateString()
+	return c.ToDateString() == Yesterday().ToDateString()
 }
 
 // IsToday reports whether is today.
@@ -273,7 +273,7 @@ func (c Carbon) IsToday() bool {
 	if c.IsInvalid() {
 		return false
 	}
-	return c.ToDateString() == c.Now().ToDateString()
+	return c.ToDateString() == Now().ToDateString()
 }
 
 // IsTomorrow reports whether is tomorrow.
@@ -282,7 +282,7 @@ func (c Carbon) IsTomorrow() bool {
 	if c.IsInvalid() {
 		return false
 	}
-	return c.ToDateString() == Now().AddDay().ToDateString()
+	return c.ToDateString() == Tomorrow().ToDateString()
 }
 
 // Compare compares by an operator.