WMAD-Unit2-2023-24

Which of the following is correct about JavaScript?

• JavaScript is an Object-Based language

• JavaScript is Assembly-language

• JavaScript is Assembly-language

• JavaScript is a High-level language

What will be the output of the following JavaScript code snippet?

<p id="demo"></p>

var txt1 = "Welcometo_";

var txt2 = "Javascriptmcq";

document.getElementById("demo").innerHTML = txt1 + txt2;

• error

• Welcometo_ Javascriptmcq

• undefined

• Javascriptmcq

Which of the following is not javascript data types?

• Null type

• Undefined type

• Number type

• All of the mentioned

What will be the output of the following JavaScript code?

<p id="demo"></p>

<script> var js = 10;

js *= 5;

document.getElementById("demo").innerHTML = js;

</script>

• 10

• 50

• 5

• error

Which of the following can be used to call a JavaScript Code Snippet?

• Function/Method

• Preprocessor

• Triggering Event

• RMI

Which of the following methods is used to access HTML elements using Javascript?

• getElementById()

• getElementsByClassName()

• Both A and B

• None of the above

jQuery is a ______

• 1. JavaScript Library

  
  

• 1. JSON Library

• 1. Java Library

• 1. JSON and CSS Library

Which sign is used to define/access jQuery?

• 1. $

• #

• &

• %

Which jQuery is used to hide the current element?

• 1. $(this).hideelement()

• 1. $(this).hide('true')

• 1. $(this).hide(0)

• 1. $(this).hide()

Which is the correct jQuery selector to select all elements?

• 1. $("all")

• 1. $("*.*")

• 1. $("*")

• 1. $("***")