What is the output of following JavaScript code? <script type=\"text/javascript\

Question

What is the output of following JavaScript code?

<script type="text/javascript">

function x()

{

var cst = "First come, first served";

var pattern = /first/gi;

document.write(cst.match(pattern)[1]);

}

</script>

a) first

b) undefined

c) First

d) Error

Which of these comment lines are used in JavaScript?

(1) // , /* ...... **/

(2) / , /** ......./ , /*

(3) /*......*/ , //

(4) *......* , //

a) Only (4)

b) Only (3)

c) Either (3) or (4)

d) Only (2)

3) What is the output of following JavaScript code?

<script type="text/javascript">

function x()

{

var s = "Give 100%!{[!!";

var pattern = /W/g;

var output = s.match(pattern);

document.write(output);

}

</script>

a) ,%,!,{,[,!,!

b) G,i,v,e,1,0,0

c) Give 100

d) Error

Explanation / Answer

1.a

2.b

3.a

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