From bbebf9c4ff24255013faa5d0eaa93899a70e630a Mon Sep 17 00:00:00 2001
From: Hansanghyeon <999@hyeon.pro>
Date: Wed, 10 Jan 2024 02:12:13 +0000
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---
 src/is-snake-case/README.md             |  3 +++
 src/is-snake-case/is-snake-case.test.ts | 14 ++++++++++++++
 src/is-snake-case/is-snake-case.ts      |  4 ++++
 3 files changed, 21 insertions(+)
 create mode 100644 src/is-snake-case/README.md
 create mode 100644 src/is-snake-case/is-snake-case.test.ts
 create mode 100644 src/is-snake-case/is-snake-case.ts

diff --git a/src/is-snake-case/README.md b/src/is-snake-case/README.md
new file mode 100644
index 0000000..d353730
--- /dev/null
+++ b/src/is-snake-case/README.md
@@ -0,0 +1,3 @@
+#codeing_case
+
+텍스트가 스네이크 케이스인지 확인하는 함수
diff --git a/src/is-snake-case/is-snake-case.test.ts b/src/is-snake-case/is-snake-case.test.ts
new file mode 100644
index 0000000..4b5c3d6
--- /dev/null
+++ b/src/is-snake-case/is-snake-case.test.ts
@@ -0,0 +1,14 @@
+import { describe, expect, it } from 'vitest';
+import { isSnakeCase } from './is-snake-case.ts';
+
+describe('isSnakeCase', () => {
+    it('should return true for valid snake case strings', () => {
+        expect(isSnakeCase('this_is_snake_case')).toBe(true);
+        expect(isSnakeCase('snake_case')).toBe(true);
+        expect(isSnakeCase('snake_case123')).toBe(false);
+    });
+
+    it('should return false for non-snake case strings', () => {
+        expect(isSnakeCase('ThisIsNotSnakeCase')).toBe(false);
+    });
+});
\ No newline at end of file
diff --git a/src/is-snake-case/is-snake-case.ts b/src/is-snake-case/is-snake-case.ts
new file mode 100644
index 0000000..1db4809
--- /dev/null
+++ b/src/is-snake-case/is-snake-case.ts
@@ -0,0 +1,4 @@
+export function isSnakeCase(text: string): boolean {
+  const snakeCaseRegex = /^[a-z0-9]+(_[a-z0-9]+)*$/;
+  return snakeCaseRegex.test(text);
+}
\ No newline at end of file