Question

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2. How will you select HTML elements using DOM? Name the DOM methods.

Ans: We can select html elements in 4 way using DOM.

What is DOM and what is the purpose of DOM?
How will you select HTML elements using DOM? Name the DOM methods.
What is event bubble?
What is a callback function and why will you use it?
What’s the difference between an Event Handler and an Event Listener?
Can you explain the different types of events available in JavaScript?
What’s the difference between event.preventDefault() and event.stopPropagation() ?

What is ES6? Have you ever used anything from ES6?
Explain the difference between var, let and const.
What is the arrow function, and how to create it?
Give an example of an Arrow function in ES6? List down its advantages.
Discuss spread operator in ES6 with an example.
What do you understand about default parameters?
What are template literals in ES6?
Tell us the difference between arrow and regular function.
What’s the difference between map, foreach, filter?
What’s the difference between filter and find?
What is the difference between for..of and for..in?
How do you empty an array?
Difference between class and object.
What is a Prototype chain? Or how does inheritance work in JavaScript?
What does destructing do in es6?
Is optional chaining is same as ternary operator?
What do you mean by dot notation and bracket notation? When should you use dot notation or bracket notation?
Deference between bind, call and apply?
Work of 'this' keyword?
How to Compare two object in JavaScript?