fix key error in 0.js - duplicate str variable

Author: lamlakamana-oss

Sprint-3/1-key-errors/0.js

@@ -1,13 +1,12 @@
 // Predict and explain first...
-//  =============> write your prediction here
+//I think this code will show a SyntaxError. The function has two variables named str in the same scope.
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
 
 function capitalise(str) {
-  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
-  return str;
+  let result = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return result;
 }
-
-// =============> write your explanation here
-// =============> write your new code here
+console.log(capitalise("hello"));
+// str is used both as the function parameter (function capitalise(str)) and again in let str = ...