complete ex 0.js

Author: fatimarouchi

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

@@ -1,13 +1,21 @@
 // Predict and explain first...
-//  =============> write your prediction here
+//  =============>// I predict JavaScript will give a SyntaxError because str is declared twice in the function.
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
 
-function capitalise(str) {
+/*function capitalise(str) {
   let str = `${str[0].toUpperCase()}${str.slice(1)}`;
   return str;
 }
-
-// =============> write your explanation here
+capitalise("hello");*/
+/* =============>  The error happens because str is already the function's parameter.
+   let str tries to use the same name again, so JavaScript gives a SyntaxError.
+   The function stops before it can run. */
 // =============> write your new code here
+function capitalise(str) {
+  const result = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return result;
+}
+capitalise("hello");
+console.log(capitalise("hello"));