JAVASCRIPT AND CREATING WEB PAGE - Practice Mode

1) How will javascript treat a number, when it is enclosed with double or single quotes?

Error Number String Zero

Correct Answer: String

2) What will be the output for the following JavaScript code?
var x = 13 +'03'
Alert(x);

16 133 1303 13 03

Correct Answer: 1303

3) What will be the output, if the javascript code is executed
var x = 1324;
var y = new Number(1324);
if( x === y)
alert('Yes');
else
alert('No')

Infinity Error No Yes

Correct Answer: Yes

4) What is the output of the following JavaScript code?
var x = 'ITI';
var y = 'GOVT';
var o = y concat(x)
document.write(o);

ITI GOVT ITIGOVT GOVTITI GOVT ITI

Correct Answer: GOVTITI

5) What is the output of the following javascript code?
var name = 'Kanya Kumari' ;
var x = name.substr(8,2);
document.write(x);

um ma ar Ku

Correct Answer: ma

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