diff --git a/utils/case.ts b/utils/case.ts
index 7308165..9c77efd 100644
--- a/utils/case.ts
+++ b/utils/case.ts
@@ -1,26 +1,35 @@
+/**
+ * Capitalize a string
+ * @param string - String to capitalize
+ * @param lowercase - Whether to lowercase rest of the string
+ */
 export const capitalize = (string: string, lowercase = false) =>
   lowercase ?
     string.charAt(0).toUpperCase() + string.slice(1).toLocaleLowerCase() :
     string.charAt(0).toUpperCase() + string.slice(1);
 
 /**
- * 
- * @param str 
+ * Change case of a string to camel case
+ * @param string - String to change case of
  * @source - https://stackoverflow.com/a/2970667/1656944
  */
-export const camelCase = (str: string) =>
-  str.replace(/(?:^\w|[A-Z]|\b\w)/g, (word, index) =>
+export const camelCase = (string: string) =>
+  string.replace(/(?:^\w|[A-Z]|\b\w)/g, (word, index) =>
     index == 0 ? word.toLowerCase() : word.toUpperCase()
   ).replace(/\s+/g, "");
 
 
 /**
- * 
- * @param string 
+ * Change case of a string to kebab case
+ * @param string - String to change case of
  * @source - https://gist.github.com/thevangelist/8ff91bac947018c9f3bfaad6487fa149#gistcomment-2183914
  */
 export const kebabCase = (string: string) =>
   string.replace(/([a-z])([A-Z])/g, "$1-$2").replace(/\s+/g, "-").toLowerCase();
 
+/**
+ * Change case of a string to snake case
+ * @param string - String to change case of
+ */
 export const snakeCase = (string: string) =>
   kebabCase(string).replace(/-/g, "_");
diff --git a/utils/slugify.ts b/utils/slugify.ts
index a8b9580..6d472ff 100644
--- a/utils/slugify.ts
+++ b/utils/slugify.ts
@@ -1,5 +1,10 @@
 import { trim } from "./trim";
 
+/**
+ * Convert a string to slug (for URLs)
+ * @param string - String to slugify
+ * @param slugSpecialCharacters - Whether to change special characters to hyphen
+ */
 export const slugify = (string: string, slugSpecialCharacters = true) =>
   trim(slugSpecialCharacters ?
     string.toLowerCase().replace(/[^\u0100-\uFFFF\w\-]/g, "-").replace(/\-\-+/g, "-") :