Returning a value, PHP Web Programming

Assignment Help:

Another function of a function is to return a value. Imagine we have the following function:

<HTML>

<HEAD>

<TITLE>IGNOU </TITLE>

<SCRIPT Language = "JavaScript">

function calculate(a,b,c)

{

d = (a+b) * c;

return d;

}

</SCRIPT>

</HEAD>

<BODY>

<SCRIPT Language = "JavaScript">

var x = calculate(4,5,9);

var y = calculate((x/3),3,5);

alert('calculate(4,5,9) = ' +x + ' and ' + ' calculate((x/3),3,5) = ' + y);

</SCRIPT>

</BODY>

</HTML>

 

322_Returning a value.png

Figure:  Using a Function that Returns a Value

The function illustrated in Figure calculates a number from the numbers you pass to it. While this is done it returns the result of the calculation. The function passes the result back to the function which called it. While the function executes return statement, control goes back to the calling program without executing any more code in function, if there is any.

The calling of the function is done via the following two statements in the figure:

var x = calculate(4,5,9);

var y = calculate((x/3),3,5);

This means that you have declared variable x and are telling JavaScript to execute calculate ( ) along the arguments 4, 5 & 9 and to put the returned value (81) in x. After that you declare a variable y and execute calculate ( ) again. The first argument is x/3, which means 81/3 = 27, thus y becomes 150.Certainly you can also return strings or even Boolean values (true or false). While using JavaScript in forms, you can write a function which returns either false or true and therefore tells the browser whether to submit form or not.


Related Discussions:- Returning a value

Web based program developed with microsoft sql server, We have a web based ...

We have a web based program developed with Microsoft SQL Server and .NET C#. There are some reports requires to be created. Required Skills are Strong Knowledge in MS SQL Ser

I need help to create splash page with paypal, I need help to Create splash...

I need help to Create splash page with paypal and aweber integration Create splash page with PayPal as well as aweber integration which has YouTube video auto playing at top the

Metropolitan area network, A MAN, basically bigger versions of a LAN is des...

A MAN, basically bigger versions of a LAN is designed to extend over a whole city.  It can be single network like a cable television network, or it can be a means of connecting a n

Web application development , Introduction This is an assessed piece of...

Introduction This is an assessed piece of coursework, so the project that you submit must be your own work , and you must understand all the files that you create for this pro

Class, how to create classes in php?

how to create classes in php?

I need help in cakephp, CakePHP, OAuth, Video APIs I want somebody who h...

CakePHP, OAuth, Video APIs I want somebody who has familiarity in CakePHP to work on a project that requires OAuth incorporation with various sites and then post videos to these

We need help to code fix on our web site, We need help to Code Fix on Our W...

We need help to Code Fix on Our Web site Our web site is a WordPress based site. Freshly we updated the plug-ins on our web site. All plug-ins updated appropriately except our M

Wordpress developer who can install the flix theme, We are required a Wordp...

We are required a Wordpress developer who can install the Flix theme for Buddypress. The project will include setting up categories, any plug-in that are required, and style the th

Need help in whatsapp web solution, WHATSAPP WEB SOLUTION We are seeking...

WHATSAPP WEB SOLUTION We are seeking a professional company to develop a solution that allows me to send a bulk message for a list of numbers from the web to whatsapp. This s

We need help for back-end of laravel framework, We need help for back-end o...

We need help for back-end of Laravel Framework We have a new website/CMS already built on Laravel framework using PHP & AngularJS. We are in need of a freelance programmer to wo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd