Which property helps to initiate HTTP requests?

Deduce the output of the following code:

<script>

document.write(typeof("3"*"4"))

</script>

Why do we need a bubble chart?

Which object is passed as the argument to handlers for keydown, keypress and keyup events?

Which two functions are not allowed in any secure subset?

When are mouse events generated?

What is the output of the following code?

var materials = [
'Hydrogen',
'Helium',
'Lithium',
'Beryllium'
];

console.log(materials.map(material => material.length));

Which of the following calculations is correct to determine the time taken for a page to load once it is received from the server?

What will be the role of the continue keyword in the following JavaScript code snippet?

while (a != 0) {
if (a == 1) {
continue;
} else {
a++;
}
}

What will be the output of the following code?

class formatDate extends Date {

  constructor(dateStr) {

    super(dateStr);

  }

  getFormattedDate() {

    const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',

                  'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

    return `${this.getDate()}-${months[this.getMonth()]}-${this.getFullYear()}`;

  }

}

console.log(new formatDate('August 19, 1975 23:15:30').getFormattedDate());