If the function contains another function inside - the variables of the outer function are visible in the inner one:
function test() {
let num = 1; // the external function variable
function func() {
console.log(num); // shows 1
}
func(); // calls the inner function
}
test(); // calls the external function
Also, variables defined outside the outer function will be visible in the inner function:
let num = 1; // the global variable
function test() {
function func() {
console.log(num); // shows 1
}
func(); // calls the inner function
};
test(); // calls the outer function
Determine what will be output to the console without running the code:
function test() {
let num = 1;
function func() {
console.log(num);
}
func();
}
test();
Determine what will be output to the console without running the code:
function test() {
let num = 1;
function func() {
console.log(num);
}
}
test();
Determine what will be output to the console without running the code:
function test() {
let num = 1;
function func() {
console.log(num);
}
func();
}
Determine what will be output to the console without running the code:
function test() {
let num;
function func() {
console.log(num);
}
num = 1
func();
num = 2
func();
}
test();