completion of 1-key-errors

Author: DamianDL

Sprint-2/1-key-errors/0.js

@@ -1,13 +1,20 @@
 // Predict and explain first...
 //  =============> write your prediction here
-
+// The code will throw an error because the variable 'str' is being redeclared inside the function 'capitalise'. The error message is likely to be a syntax error.
 // 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;
-}
+//function capitalise(str) {
+ // let str = `${str[0].toUpperCase()}${str.slice(1)}`;
+  //return str;
+//}
 
 // =============> write your explanation here
+// The error is occurring because we are trying to declare a variable 'str' inside the function that has the same name as the parameter 'str'.To fix this problem,  create an variable with a new name Newstr . So we would change the line to: Newstr = `${str[0].toUpperCase()}${str.slice(1)}`;
 // =============> write your new code here
+function capitalise(str) {
+  let Newstr = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return Newstr;
+} 
+str="hello world";
+console.log(capitalise(str));