Update isValidJSON.md

snippets/isValidJSON.md

@@ -1,8 +1,8 @@
 ### isValidJSON
 
-Checks if the provided argument is an valid JSON.
-
+Checks if the provided argument is a valid JSON.
 
+Use `JSON.parse()` and a `try... catch` block to check if the provided argument is a valid JSON.
 
 ```js
 const arr = (obj) => {