Skip to main content

javascript interview questions and answers


  1. This is first example of java script(answer..) 
  2. Get the url of the parent page using java script(answer..) 
  3. Remove href-link at the run time from a any page using java script(answer..) 
  4. How to show the prompt-box using java script (answer..) 
  5. How to find the special characters using java script(answer..) 
  6. Show day-of-week using java script(answer..) 
  7. How to show the confirm-box using java script(answer..) 
  8. Validate a form using java script(answer..) 
  9. What is the use of eval() method and floor() method in java script(answer..) 
  10. What is the use of join() and isNAN() method in java script(answer..) 
  11. Can you tell me about methods in java script(answer..) 
  12. How to use a loop in java script(answer..) 
  13. What is the continue and break statement in java script(answer..) 
  14. Explain the java script Math(), String, Number object method(answer..) 
  15. What is the use of createTextNode() method in java script(answer..) 
  16. What is the use of blure() and assign() method(answer..) 
  17. What is the use of link() in java script(answer..) 
  18. What is the use of createPopup() and open() method(answer..) 
  19. What is the use of blink() method(answer..) 
  20. What is the use of print() method(answer..) 
  21. How to send an email using java script(answer..) 
  22. What is the unit user time on a page(answer..) 
  23. How to show the digital-clock in the status line using java script(answer..) 
  24. What is the use of sup() and sort() method(answer..) 
  25. Example of calculator in java script(answer..) 
  26. How to upload an image using java script (answer..) 
  27. How to display clock on button(answer..) 
  28. How to show the popup window onmousover(answer..) 
  29. How to use the cookie in java script (answer..) 
  30. How to increase or decrease the image size(answer..) 
  31. How to open a popup in the java script(answer..) 
  32. How to generate the Uni-Code(answer..) 
  33. How to disable the mouse right click(answer..) 
  34. How to create animated frame using java script(answer..) 
  35. What is the use of pow() in java script(answer..)
  36. What is the use of slice() in java script(answer..)


By Anil Singh | Rating of this article (*****)

Popular posts from this blog

39 Best Object Oriented JavaScript Interview Questions and Answers

Most Popular 37 Key Questions for JavaScript Interviews. What is Object in JavaScript? What is the Prototype object in JavaScript and how it is used? What is "this"? What is its value? Explain why "self" is needed instead of "this". What is a Closure and why are they so useful to us? Explain how to write class methods vs. instance methods. Can you explain the difference between == and ===? Can you explain the difference between call and apply? Explain why Asynchronous code is important in JavaScript? Can you please tell me a story about JavaScript performance problems? Tell me your JavaScript Naming Convention? How do you define a class and its constructor? What is Hoisted in JavaScript? What is function overloadin

List of Countries, Nationalities and their Code In Excel File

Download JSON file for this List - Click on JSON file    Countries List, Nationalities and Code Excel ID Country Country Code Nationality Person 1 UNITED KINGDOM GB British a Briton 2 ARGENTINA AR Argentinian an Argentinian 3 AUSTRALIA AU Australian an Australian 4 BAHAMAS BS Bahamian a Bahamian 5 BELGIUM BE Belgian a Belgian 6 BRAZIL BR Brazilian a Brazilian 7 CANADA CA Canadian a Canadian 8 CHINA CN Chinese a Chinese 9 COLOMBIA CO Colombian a Colombian 10 CUBA CU Cuban a Cuban 11 DOMINICAN REPUBLIC DO Dominican a Dominican 12 ECUADOR EC Ecuadorean an Ecuadorean 13 EL SALVADOR

25 Best Vue.js 2 Interview Questions and Answers

What Is Vue.js? The Vue.js is a progressive JavaScript framework and used to building the interactive user interfaces and also it’s focused on the view layer only (front end). The Vue.js is easy to integrate with other libraries and others existing projects. Vue.js is very popular for Single Page Applications developments. The Vue.js is lighter, smaller in size and so faster. It also supports the MVVM ( Model-View-ViewModel ) pattern. The Vue.js is supporting to multiple Components and libraries like - ü   Tables and data grids ü   Notifications ü   Loader ü   Calendar ü   Display time, date and age ü   Progress Bar ü   Tooltip ü   Overlay ü   Icons ü   Menu ü   Charts ü   Map ü   Pdf viewer ü   And so on The Vue.js was developed by “ Evan You ”, an Ex Google software engineer. The latest version is Vue.js 2. The Vue.js 2 is very similar to Angular because Evan You was inspired by Angular and the Vue.js 2 components looks like -

React | Encryption and Decryption Data/Text using CryptoJs

To encrypt and decrypt data, simply use encrypt () and decrypt () function from an instance of crypto-js. Node.js (Install) Requirements: 1.       Node.js 2.       npm (Node.js package manager) 3.       npm install crypto-js npm   install   crypto - js Usage - Step 1 - Import var   CryptoJS  =  require ( "crypto-js" ); Step 2 - Encrypt    // Encrypt    var   ciphertext  =  CryptoJS . AES . encrypt ( JSON . stringify ( data ),  'my-secret-key@123' ). toString (); Step 3 -Decrypt    // Decrypt    var   bytes  =  CryptoJS . AES . decrypt ( ciphertext ,  'my-secret-key@123' );    var   decryptedData  =  JSON . parse ( bytes . toString ( CryptoJS . enc . Utf8 )); As an Example,   import   React   from   'react' ; import   './App.css' ; //Including all libraries, for access to extra methods. var   CryptoJS  =  require ( "crypto-js" ); function   App () {    var   data

.NET Core MVC Interview Questions and Answers

» OOPs Interview Questions Object Oriented Programming (OOP) is a technique to think a real-world in terms of objects. This is essentially a design philosophy that uses a different set of programming languages such as C#... Posted In .NET » .Net Constructor Interview Questions A class constructor is a special member function of a class that is executed whenever we create new objects of that class. When a class or struct is created, its constructor is called. A constructor has exactly the same name as that of class and it does not have any return type… Posted In .NET » .NET Delegates Interview Questions Delegates are used to define callback methods and implement event handling, and they are declared using the "delegate" keyword. A delegate in C# is similar to function pointers of C++, but C# delegates are type safe… Posted In .NET » ASP.Net C# Interview Questions C# was developed by Microsoft and is used in essentially all of their products. It is mainly used for