Which protocol is a stateless protocol?

The number of Node object methods available are?

What is the default value of the async attribute in HTML?

Which of the following is not an example of a closure?

Which of the following can be used to perform form validation?

  Which of the operator is used to test if a particular property exists or not?
 

Which method to use while working with XML fragments, instead of XML()?

Which function among the following lets you register a function to be invoked only once?

What is the output of the following JavaScript code?

var arr = [7, 3, 9, 2];  

var value = Math.max.apply(null, arr);  

document.writeln(value);

What will be the output of the following code?

const materials = [

  'iron',

  'Helium',

  'Lithium',

  'Beryllium'

];

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