diff --git a/crates/swc_ecma_codegen/tests/test262-min/0b1fc7208759253b.js b/crates/swc_ecma_codegen/tests/test262-min/0b1fc7208759253b.js
index da9d4480a421f..8563b23ce01e8 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/0b1fc7208759253b.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/0b1fc7208759253b.js
@@ -1 +1 @@
-"\x00\x01\x02\x03\x04\x05\x06\x07\b	\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe"+a;
+"\0\x01\x02\x03\x04\x05\x06\x07\b	\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe"+a;
diff --git a/crates/swc_ecma_codegen/tests/test262-min/3ae4f46daa688c58.js b/crates/swc_ecma_codegen/tests/test262-min/3ae4f46daa688c58.js
index 5ec670c6e0bef..25c8e047d7e39 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/3ae4f46daa688c58.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/3ae4f46daa688c58.js
@@ -1 +1 @@
-"use strict";("\x00");
+"use strict";("\0");
diff --git a/crates/swc_ecma_codegen/tests/test262-min/3d2ab39608730a47.js b/crates/swc_ecma_codegen/tests/test262-min/3d2ab39608730a47.js
index 27e7385f10d07..5b22c9ac92c59 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/3d2ab39608730a47.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/3d2ab39608730a47.js
@@ -1 +1 @@
-"use strict";("\x00x");
+"use strict";("\0x");
diff --git a/crates/swc_ecma_codegen/tests/test262-min/4672c2ef688237c9.js b/crates/swc_ecma_codegen/tests/test262-min/4672c2ef688237c9.js
index f56e782699bf5..6e7bb0b7e5a10 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/4672c2ef688237c9.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/4672c2ef688237c9.js
@@ -1 +1 @@
-"\n\r	\v\b\f\\'\"\x00";
+"\n\r	\v\b\f\\'\"\0";
diff --git a/crates/swc_ecma_codegen/tests/test262-min/4fee4ac53bdfd7f7.js b/crates/swc_ecma_codegen/tests/test262-min/4fee4ac53bdfd7f7.js
index 860e19dd29392..c2890cbd631e7 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/4fee4ac53bdfd7f7.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/4fee4ac53bdfd7f7.js
@@ -1 +1 @@
-"Hello\x00World";
+"Hello\0World";
diff --git a/crates/swc_ecma_codegen/tests/test262-min/7c03e5eb6a9f6f1a.js b/crates/swc_ecma_codegen/tests/test262-min/7c03e5eb6a9f6f1a.js
index ed457a4d783f1..eaa392db17dee 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/7c03e5eb6a9f6f1a.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/7c03e5eb6a9f6f1a.js
@@ -1 +1 @@
-function a(){"use strict";"\x00"}
+function a(){"use strict";"\0"}
diff --git a/crates/swc_ecma_codegen/tests/test262-min/84f901eb37273117.js b/crates/swc_ecma_codegen/tests/test262-min/84f901eb37273117.js
index 355e2d1209cf6..3c782a716d0de 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/84f901eb37273117.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/84f901eb37273117.js
@@ -1 +1 @@
-("\x00");
+("\0");
diff --git a/crates/swc_ecma_codegen/tests/test262-min/c7e5fba8bf3854cd.js b/crates/swc_ecma_codegen/tests/test262-min/c7e5fba8bf3854cd.js
index 1607f38f3030d..f3758da0c2705 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/c7e5fba8bf3854cd.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/c7e5fba8bf3854cd.js
@@ -1 +1 @@
-(function(){"use strict";"\x00"}());
+(function(){"use strict";"\0"}());
diff --git a/crates/swc_ecma_codegen/tests/test262-min/d81d71f4121e3193.js b/crates/swc_ecma_codegen/tests/test262-min/d81d71f4121e3193.js
index 355e2d1209cf6..3c782a716d0de 100644
--- a/crates/swc_ecma_codegen/tests/test262-min/d81d71f4121e3193.js
+++ b/crates/swc_ecma_codegen/tests/test262-min/d81d71f4121e3193.js
@@ -1 +1 @@
-("\x00");
+("\0");
diff --git a/crates/swc_ecma_codegen/tests/test262/0b1fc7208759253b.js b/crates/swc_ecma_codegen/tests/test262/0b1fc7208759253b.js
index 46401759987ef..ae060d276c949 100644
--- a/crates/swc_ecma_codegen/tests/test262/0b1fc7208759253b.js
+++ b/crates/swc_ecma_codegen/tests/test262/0b1fc7208759253b.js
@@ -1 +1 @@
-"\x00\x01\x02\x03\x04\x05\x06\x07\b	\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe" + a;
+"\0\x01\x02\x03\x04\x05\x06\x07\b	\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe" + a;
diff --git a/crates/swc_ecma_codegen/tests/test262/3ae4f46daa688c58.js b/crates/swc_ecma_codegen/tests/test262/3ae4f46daa688c58.js
index d133f68a7eadf..5e26598bc13eb 100644
--- a/crates/swc_ecma_codegen/tests/test262/3ae4f46daa688c58.js
+++ b/crates/swc_ecma_codegen/tests/test262/3ae4f46daa688c58.js
@@ -1,2 +1,2 @@
 "use strict";
-("\x00");
+("\0");
diff --git a/crates/swc_ecma_codegen/tests/test262/3d2ab39608730a47.js b/crates/swc_ecma_codegen/tests/test262/3d2ab39608730a47.js
index 3cee5ac8ca13f..f172469b2eb38 100644
--- a/crates/swc_ecma_codegen/tests/test262/3d2ab39608730a47.js
+++ b/crates/swc_ecma_codegen/tests/test262/3d2ab39608730a47.js
@@ -1,2 +1,2 @@
 "use strict";
-("\x00x");
+("\0x");
diff --git a/crates/swc_ecma_codegen/tests/test262/4672c2ef688237c9.js b/crates/swc_ecma_codegen/tests/test262/4672c2ef688237c9.js
index f56e782699bf5..6e7bb0b7e5a10 100644
--- a/crates/swc_ecma_codegen/tests/test262/4672c2ef688237c9.js
+++ b/crates/swc_ecma_codegen/tests/test262/4672c2ef688237c9.js
@@ -1 +1 @@
-"\n\r	\v\b\f\\'\"\x00";
+"\n\r	\v\b\f\\'\"\0";
diff --git a/crates/swc_ecma_codegen/tests/test262/4fee4ac53bdfd7f7.js b/crates/swc_ecma_codegen/tests/test262/4fee4ac53bdfd7f7.js
index 860e19dd29392..c2890cbd631e7 100644
--- a/crates/swc_ecma_codegen/tests/test262/4fee4ac53bdfd7f7.js
+++ b/crates/swc_ecma_codegen/tests/test262/4fee4ac53bdfd7f7.js
@@ -1 +1 @@
-"Hello\x00World";
+"Hello\0World";
diff --git a/crates/swc_ecma_codegen/tests/test262/7c03e5eb6a9f6f1a.js b/crates/swc_ecma_codegen/tests/test262/7c03e5eb6a9f6f1a.js
index 1d78cb20a8ba5..158a0311feb84 100644
--- a/crates/swc_ecma_codegen/tests/test262/7c03e5eb6a9f6f1a.js
+++ b/crates/swc_ecma_codegen/tests/test262/7c03e5eb6a9f6f1a.js
@@ -1,4 +1,4 @@
 function a() {
     "use strict";
-    "\x00";
+    "\0";
 }
diff --git a/crates/swc_ecma_codegen/tests/test262/84f901eb37273117.js b/crates/swc_ecma_codegen/tests/test262/84f901eb37273117.js
index 355e2d1209cf6..3c782a716d0de 100644
--- a/crates/swc_ecma_codegen/tests/test262/84f901eb37273117.js
+++ b/crates/swc_ecma_codegen/tests/test262/84f901eb37273117.js
@@ -1 +1 @@
-("\x00");
+("\0");
diff --git a/crates/swc_ecma_codegen/tests/test262/c7e5fba8bf3854cd.js b/crates/swc_ecma_codegen/tests/test262/c7e5fba8bf3854cd.js
index 1bb2413204086..ace2e090dc7f1 100644
--- a/crates/swc_ecma_codegen/tests/test262/c7e5fba8bf3854cd.js
+++ b/crates/swc_ecma_codegen/tests/test262/c7e5fba8bf3854cd.js
@@ -1,4 +1,4 @@
 (function() {
     "use strict";
-    "\x00";
+    "\0";
 }());
diff --git a/crates/swc_ecma_codegen/tests/test262/d81d71f4121e3193.js b/crates/swc_ecma_codegen/tests/test262/d81d71f4121e3193.js
index 355e2d1209cf6..3c782a716d0de 100644
--- a/crates/swc_ecma_codegen/tests/test262/d81d71f4121e3193.js
+++ b/crates/swc_ecma_codegen/tests/test262/d81d71f4121e3193.js
@@ -1 +1 @@
-("\x00");
+("\0");