JavaScript Test 2

What is the type of the value 123n in JavaScript?

What is the result of 5 === "5" in JavaScript?

How many times will this loop run?

for (let i = 0; i < 5; i++) {
  console.log(i);
}

What is the result of:

let arr = [1, 2];
arr.push(3);
console.log(arr);

An anonymous function is a function that:

Which code correctly adds a property age with value 25 to an object user?

What does the following code output?

let person = {
  name: "Alice",
  greet: function() {
    console.log(this.name);
  }
};
person.greet();

How do you change the text inside an element with ID title?

How do you create a string using template literals?

What is the purpose of .then() in a Promise?

What is the result of Number("123abc")?

What is the result of true && false?

What is the output?

let i = 0;
while (i < 3) {
  console.log(i);
  i++;
}

What is the result of:

let arr = [1, 2, 3];
arr.pop();
console.log(arr);

Which type of function gets hoisted completely in JavaScript?

What does Object.keys(obj) return?

What is special about this in arrow functions?

Which method creates a new HTML element?

What will add(5) return if the function is defined as:

function add(a, b = 10) { return a + b; }

What does .catch() do in a Promise chain?