Javascript-2

Java script can be used for Storing the form's contents to a database file on the server

• True

• False

Which of the below is used in Java script to insert special characters?

• &

• \

• -

• %

Which of the following is not a valid JavaScript variable name?

• 2java

• _java_and_$java _names

• javaandjava

• None of the above

What is negative infinity in Java script?

• Any of below

• number in JavaScript, derived by dividing number by a negative number.

• number in JavaScript, derived by dividing number by zero.

• number in JavaScript, derived by dividing negative number by zero

Predict the output of the following JavaScript Code.

<script type="text/javascript">

a = 8 + "8";

document.write(a);

</script>

• 16

• Compilation Error

• 88

• Run Time Error

Predict the output of the following JavaScript Code.

<script type="text/javascript">

var a="GeeksforGeeks";

var x=a.lastIndexOf("G");

document.write(x);

</script>

• 8

• 0

• 9

• Error

Predict the output of the following JavaScript Code.

<script type="text/javascript" language="javascript">

var a = "GeeksforGeeks";

var result = a.substring(4, 5);

document.write(result);

</script>

• sf

• ks

• s

• k

Predict the output of the following JavaScript Code.

<script type="text/javascript" language="javascript">

var x=5;

var y=6;

var res=eval("x*y");

document.write(res);

</script>

• "30"

• 30

• 5*6

• “5*6”

How is the function called in JavaScript?

• call Geekfunc();

• call function GeekFunc();

• Geekfunc();

• function Geekfunc();

Predict the output of the following JavaScript Code.

<script>

document.write(typeof(24.49));

</script>

• float

• number

• integer

• double