Local variables in JavaScript functions
Variables defined within a function are called local. Unlike global variables, local variables are only visible inside the function, and not visible from the outside:
function func() {
let num = 5; // the local variable
console.log(num);
}
console.log(num); // will not output anything, but will throw an error to the console
Determine what will be output to the console without running the code:
function func() {
let num = 5;
return num;
}
console.log(num);
Determine what will be output to the console without running the code:
function func() {
let num = 5;
return num;
}
console.log(func());
