1 files changed, 5 insertions, 0 deletions
diff --git a/common/bytes.go b/common/bytes.go
index 2d885ac74..5bdacd810 100644
--- a/common/bytes.go
+++ b/common/bytes.go
@@ -127,6 +127,11 @@ func CopyBytes(b []byte) (copiedBytes []byte) {
 	return
 }
 
+func HasHexPrefix(str string) bool {
+	l := len(str)
+	return l >= 2 && str[0:2] == "0x"
+}
+
 func IsHex(str string) bool {
 	l := len(str)
 	return l >= 4 && l%2 == 0 && str[0:2] == "0x"