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JavaScript & jQuery: DOM Scripting & AJAX Quiz Questions and Answers

Answer :
  • an interpreted

Explanation :

JavaScript is an interpreted language, not a compiled language. C++ or Java codes needs to be compiled before it is run. The source code is passed through a program called a compiler, which translates it into bytecode that the machine understands and can execute. There is no such need in case of JavaScript.
Answer :
  • 5

Explanation :

n JavaScript, the scope of variables is not changed in conditional statements and loops. Scope is only changed in case of functions, therefore a is defined even outside the ‘if’ conditional block
Answer :
  • None

Explanation :

Section 6 of the ECMAScript standard uses UTF-16 as a reference encoding, but does not designate it as default.
Answer :
  • <p>Client</p>

Explanation :

JavaScript is a Browser Side Scripting Language. ASP, PHP, Perl are Server Side Scripting Language.
Answer :
  • alert(“Koenig”);

Explanation :

To display any text in the alert box, you need to write it as alert(“Koenig”);.
Answer :
  • let
  • const
  • var

Explanation :

variables with the const keyword are technically constants and not variables
Answer :
  • getElementById

Explanation :

getElementById is a method provided by doucment object in javascript
Answer :
  • $( "p ").css( "background-color ", "red ");

Explanation :

Jquery provide css method to apply the color on html element
Answer :
  • string,number

Explanation :

ypeof command will return the datatype of the variable.