Q1. What are the possible ways to create objects in JavaScript?
There are many ways to create objects in javascript as mentioned below: 1. **Object literal syntax:** The object literal syntax (or object initializer), is a comma-separa...
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Q2. What is a prototype chain?
The prototype chain is a core concept in JavaScript’s inheritance model. It allows objects to inherit properties and methods from other objects. When you try to access a ...
Q3. How do you compare Object and Map?
**Objects** and **Maps** both allow you to associate keys with values, retrieve those values, delete keys, and check if a key exists. Historically, Objects have been used...
Q4. How does TypeScript support class-based object-oriented programming?
TypeScript supports class-based object-oriented programming. It allows defining classes, inheritance, access modifiers (public, private, protected), abstract classes, and...
Q5. What is scope in javascript?
Scope is the accessibility of variables, functions, and objects in some particular part of your code during runtime. In other words, scope determines the visibility of va...
Q6. What is a post message?
Post message is a method that enables cross-origin communication between Window objects.(i.e, between a page and a pop-up that it spawned, or between a page and an iframe...
Q7. Does TypeScript support all Object-Oriented principles?
Yes, Typescript support all object oriented principles. There are 4 main principles to Object Oriented Programming: Encapsulation, Inheritance, Abstraction, and Polymorph...
Q8. How do you access web storage?
The Window object implements the `WindowLocalStorage` and `WindowSessionStorage` objects which has `localStorage`(window.localStorage) and `sessionStorage`(window.session...
Q9. What are the restrictions of web workers on DOM?
WebWorkers don't have access to below javascript objects since they are defined in an external files 1. Window object 2. Document object 3. Parent object
Q10. What is the difference between native, host and user objects?
`Native objects` are objects that are part of the JavaScript language defined by the ECMAScript specification. For example, String, Math, RegExp, Object, Function etc cor...