Free Practice JS Institute JSE-40-01 Exam Questions 2025

Analyze the following code:

function fn(a) {

    console.log('test');

    a--;

    if(a>2) fn(a);

}

fn(6);

How many times will test appear on the screen?

Analyze the following code:

let point = {x: 10, y: 20};

for (let f in point) {

    console.log(point[f]);

}

What will appear on the console as a result of its execution?

Analyze the following code:

let x = 10;

function test() {

    let x = 20;

}

test();

console.log(x);

What will be displayed in the console as a result of its execution?

What does shadowing mean?

Review the following code (note the variable name)let height = 170;

height = height + 10;

console.log(Height);

As a result of its execution, the following should appear in the console: