Which character in JavaScript will be interpreted as XML markup?

  Which function is a synonym for on()? 

Which of the following is not a mouse event?

What are the two main ways of event propagation?

What will be the output of the following code?

const obj = {prop: 12};
Object.preventExtensions(obj);
console.log(Object.isExtensible(obj));

 The provides() function and the exportsobject are used to ______ 

What is the purpose of data format validation?

for (var i = 0; i < 3; i++) {
 setTimeout(() => console.log(i), 1);
}

for (let i = 0; i < 3; i++) {
 setTimeout(() => console.log(i), 1);
}

Which of the given is a necessity for creation of a separate file after having API key?

What is a block statement in JavaScript?