How can I use variables from another function in javascript

Question

I cant have access to my variables from my function UserInfo all my variables are undefined. How can I have access to my variable and display them in my func

Answer 1

You are re-declaring your variables in UserInfo which causes them to hide the ones already declared in a higher scope. Just remove the let keyword on the variable assignments inside the function so that, instead of re-declaring smaller scoped variables, you use the already declared ones.

// These variables will be available in the current scope and descendent scopes
let UserName;
let UserAge;
let UserBirthPlace;
let UserDream;  
    
let UserInfo = function(){
  // ...So, don't re-declare the variables - just use them!
  UserName = prompt("What is your name:");
  UserAge = prompt("How old are you: ");
  UserBirthPlace = prompt("Where were you born: ")
  UserDream = prompt("What is your Greatest Dream: ");
}
    
let seeInfoUser = function (){
  // You really don't need to declare a variable if all you are going to do is return its value
  return ` ${UserName} is  ${UserAge} and he was born in ${UserBirthPlace} and his greatest dream is ${UserDream}`;
}
    
let result = seeInfoUser(UserInfo());
console.log(result)