Modify slufigy with GithubSlugger

src/utils/slugify.ts

@@ -1,9 +1,13 @@
-const slugify = (str: string) =>
+import GithubSlugger from "github-slugger";
-  str
+import type { Frontmatter } from "src/types";
-    .toLowerCase()
-    .replace(/ /g, "-")
-    .replace(/[^\w-]+/g, "");
 
-export const slufigyAll = (arr: string[]) => arr.map((str) => slugify(str));
+const slugger = GithubSlugger.slug;
+
+export const slugifyStr = (str: string) => slugger(str);
+
+const slugify = (frontmatter: Frontmatter) =>
+  frontmatter.slug ? frontmatter.slug : slugger(frontmatter.title);
+
+export const slufigyAll = (arr: string[]) => arr.map((str) => slugifyStr(str));
 
 export default slugify;