From 0eefd45845b3e8bc8bc3b801348fa5738bbfee36 Mon Sep 17 00:00:00 2001
From: Jeongho Nam <samchon.github@gmail.com>
Date: Fri, 4 Aug 2023 14:01:43 +0900
Subject: [PATCH] Fix #736 - bug of undefined `length` problem.

Global variable `length` exists in DOM, and did a mistake to use the global variable `length` instead of using `String.length` property.
---
 package.json                                       |  2 +-
 packages/typescript-json/package.json              |  4 ++--
 src/functional/$string.ts                          |  4 +++-
 .../issues/test_issue_long_string_stringify.ts     | 14 ++++++++++++++
 .../issues/test_issue_long_string_stringify.ts     | 13 +++++++++++++
 5 files changed, 33 insertions(+), 4 deletions(-)
 create mode 100644 test/features/issues/test_issue_long_string_stringify.ts
 create mode 100644 test/generated/output/issues/test_issue_long_string_stringify.ts

diff --git a/package.json b/package.json
index eea846eda7..647384b2a4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "typia",
-  "version": "4.1.15",
+  "version": "4.1.16",
   "description": "Superfast runtime validators with only one line",
   "main": "lib/index.js",
   "typings": "lib/index.d.ts",
diff --git a/packages/typescript-json/package.json b/packages/typescript-json/package.json
index 6b16e4bb8e..8c6905847c 100644
--- a/packages/typescript-json/package.json
+++ b/packages/typescript-json/package.json
@@ -1,6 +1,6 @@
 {
   "name": "typescript-json",
-  "version": "4.1.15",
+  "version": "4.1.16",
   "description": "Superfast runtime validators with only one line",
   "main": "lib/index.js",
   "typings": "lib/index.d.ts",
@@ -68,7 +68,7 @@
   },
   "homepage": "https://typia.io",
   "dependencies": {
-    "typia": "4.1.15"
+    "typia": "4.1.16"
   },
   "peerDependencies": {
     "typescript": ">= 4.7.4"
diff --git a/src/functional/$string.ts b/src/functional/$string.ts
index d8d6bd37d3..0f70ebc44b 100644
--- a/src/functional/$string.ts
+++ b/src/functional/$string.ts
@@ -13,7 +13,9 @@
  */
 export const $string = (str: string): string => {
     if (STR_ESCAPE.test(str) === false) return `"${str}"`;
-    if (str.length > 41) return JSON.stringify(str);
+
+    const length: number = str.length;
+    if (length > 41) return JSON.stringify(str);
 
     let result = "";
     let last = -1;
diff --git a/test/features/issues/test_issue_long_string_stringify.ts b/test/features/issues/test_issue_long_string_stringify.ts
new file mode 100644
index 0000000000..10d3575783
--- /dev/null
+++ b/test/features/issues/test_issue_long_string_stringify.ts
@@ -0,0 +1,14 @@
+import typia from "typia";
+
+import { RandomGenerator } from "typia/lib/utils/RandomGenerator";
+
+export const test_issue_long_string_stringify = (): void => {
+    const str: string = RandomGenerator.string(1000);
+    const stringified: string = typia.stringify(str);
+    const decoded: string = JSON.parse(stringified);
+
+    if (str !== decoded)
+        throw new Error(
+            `Bug on typia.stringify(): failed to stringify long string.`,
+        );
+};
diff --git a/test/generated/output/issues/test_issue_long_string_stringify.ts b/test/generated/output/issues/test_issue_long_string_stringify.ts
new file mode 100644
index 0000000000..5ae941a7f2
--- /dev/null
+++ b/test/generated/output/issues/test_issue_long_string_stringify.ts
@@ -0,0 +1,13 @@
+import typia from "typia";
+
+import { RandomGenerator } from "typia/lib/utils/RandomGenerator";
+
+export const test_issue_long_string_stringify = (): void => {
+    const str: string = RandomGenerator.string(1000);
+    const stringified: string = typia.stringify(str);
+    const decoded: string = JSON.parse(stringified);
+    if (str !== decoded)
+        throw new Error(
+            `Bug on typia.stringify(): failed to stringify long string.`,
+        );
+};