feat: added unslugify util

Author: devlargs

README.md

@@ -147,6 +147,20 @@ console.log(toKebabCase("React Testing Library")); // react-testing-library
 console.log(toKebabCase("Aliessa Dedase")); // aliessa-dedase
 ```
 
+### `unslugify`
+
+Convert slugs to Sentence Case
+
+**Usage:**
+
+```typescript
+import { unslugify } from "largs-utils";
+
+unslugify("my-awesome-title"); // "My Awesome Title"
+unslugify("hello_world"); // "Hello World"
+unslugify("  spaced--out__slug "); // "Spaced Out Slug"
+```
+
 #### Support my enthusiasm
 
 If you like this util, feel free to buy me a coffee ☕!

src/__tests__/unslugify.test.ts

@@ -0,0 +1,23 @@
+import { unslugify } from "../unslugify";
+
+describe("unslugify", () => {
+  it("converts kebab-case to capitalized words", () => {
+    expect(unslugify("my-awesome-title")).toBe("My Awesome Title");
+  });
+
+  it("converts snake_case to capitalized words", () => {
+    expect(unslugify("hello_world_test")).toBe("Hello World Test");
+  });
+
+  it("handles mixed separators and spacing", () => {
+    expect(unslugify("  this--is__a_test  ")).toBe("This Is A Test");
+  });
+
+  it("handles single word", () => {
+    expect(unslugify("example")).toBe("Example");
+  });
+
+  it("returns empty string if input is empty", () => {
+    expect(unslugify("")).toBe("");
+  });
+});

src/unslugify.ts

@@ -0,0 +1,9 @@
+export const unslugify = (slug: string): string =>
+  slug
+    .replace(/[-_]/g, " ")
+    .replace(/\s+/g, " ")
+    .trim()
+    .replace(
+      /\w\S*/g,
+      (word) => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase()
+    );