fix(curriculum): update arrow syntax code examples for step 11 of music player project (#53779)

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-basic-string-and-array-methods-by-building-a-music-player/653fb19b515fde28243f727a.md

@@ -7,29 +7,22 @@ dashedName: step-11
 
 # --description--
 
-Now you need a way to display the songs in the UI. To do this, you'll create a `renderSongs` function using the arrow function syntax.
+Now you need a way to display the songs in the UI (User Interface). To do this, you'll create a `renderSongs` function using the arrow function syntax.
 
-An arrow function is a shorter and more concise way to write functions in JavaScript. It's a <dfn>function expression</dfn>, which is a function that's assigned to a variable. To write an arrow function, you can use the following syntax:
+An arrow function is a shorter and more concise way to write functions in JavaScript. It's a <dfn>function expression</dfn>, which is a function that's assigned to a variable. 
+
+Here is an example of an arrow function with a single parameter and a single expression in the function body:
 
 ```js
-// Traditional function
-function add(a, b) {
-  return a + b;
-}
-console.log(add(3, 5)); // Output: 8
-
-// Arrow function
-const addArrow = (a, b) => {
-  return a + b;
+const exampleArrowFunction = (param) => {
+  return param
 };
-console.log(addArrow(3, 5)); // Output: 8
 ```
 
-If the function body consists of a single expression, you don't need the curly braces and the `return` keyword. This is called an `implicit return`:
+If the function body consists of a single expression, you can omit the curly braces and the `return` keyword. This is called an `implicit return`:
 
 ```js
-const addArrow = (a, b) =>  a + b;
-console.log(addArrow(3, 5)); // Output: 8
+const exampleArrowFunction = (param) => param;
 ```
 
 Use the arrow function syntax to create a `renderSongs` function that takes in `array` as its parameter.