diff --git a/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/100-default-params.md b/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/100-default-params.md
index 58a393eff..2800b8dde 100644
--- a/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/100-default-params.md
+++ b/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/100-default-params.md
@@ -1 +1,5 @@
-# Default params
\ No newline at end of file
+# Default Parameters
+
+Default function parameters allow named parameters to be initialized with default values if no value or `undefined` is passed.
+
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Default_parameters'>Default Parameters - MDN Docs</BadgeLink>
diff --git a/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/101-rest-params.md b/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/101-rest-params.md
index 41c37ca23..04318e655 100644
--- a/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/101-rest-params.md
+++ b/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/101-rest-params.md
@@ -1 +1,5 @@
-# Rest params
\ No newline at end of file
+# Rest Parameters
+
+The rest parameter syntax allows a function to accept an indefinite number of arguments as an array, providing a way to represent [variadic functions](https://en.wikipedia.org/wiki/Variadic_function) in JavaScript.
+
+<BadgeLink colorScheme='yellow' badgeText='Rest parameters MDN documentation' href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters'>Rest Paremeters - MDN Docs</BadgeLink>
diff --git a/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/readme.md b/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/readme.md
index f2db1b6c8..d0dde10ac 100644
--- a/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/readme.md
+++ b/content/roadmaps/106-javascript/content/109-javascript-functions/101-function-parameters/readme.md
@@ -3,4 +3,3 @@
 The parameter is the name given to the variable declared inside the definition of a function. There are two special kinds of syntax: default and rest parameters.
 
 <BadgeLink colorScheme="yellow" badgeText="Read" href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Functions#function_parameters">Function Parameters</BadgeLink>
-