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

I desire to build an online directory for local maids, I desire to build an...

I desire to build an Online Directory for local Maids and Cleaners I am seeking to build an online directory for maids and cleaners using Ruby On Rails and Twitter Bootstrap. Bo

Need help-cakephp plugin needed to plot charts with nv3d.js, Cakephp plugin...

Cakephp plugin needed to plot charts with nv3d.js I have a database where I have pairs of date times and values. I want a cakephp plugin that permits me to plot them using nv3d.

We are in need of magento developer, We are in need of Magento Developer ...

We are in need of Magento Developer A appreciated company, specialized in Web marketing is searching for a well skilful expert Magento developer Desired Skills are PHP, Magen

We are looking for wordpress theme install & customization, We are looking ...

We are looking for Wordpress Theme Install & Customization Greenable.net is hiring a candidate to install as well as customize the Avada Wordpress theme according to the demo si

We need help in financial application support, We need help in Financial Ap...

We need help in Financial Application Support Enhance our account aggregation process using Yodlee API. We want to fix several bugs in our existing process as well as change fro

Web developer wanted to create a website, Web developer wanted to create a ...

Web developer wanted to create a website for an exciting start-up company We are presently looking to develop an editable website with responsive design. The basic design has pr

In search of expert to setup an open-source php software, In search of expe...

In search of expert to setup an open-source PHP software We are a well-known e-commerce company seeking to setup/sync/edit a git-hub public repository platform, as a whitelabel

Test links in dreamweaver, In Dreamweaver you cannot test your links; you s...

In Dreamweaver you cannot test your links; you should check your links in a browser to make sure the pages operate as you expect. 1. Press F12 to preview the page in a brow

We need a fast- top-notch- ruby and rails developer, We need a Fast, Top-No...

We need a Fast, Top-Notch, Ruby (and Rails) Developer We're seeking a backup Rails developer for our creative team. We by now have a Senior Developer/Analyst and a part-time PHP

I need help in website design using html, I need  help in Website design u...

I need  help in Website design using HTML,coding etc I need to develop a very detailed and innovative liquor related website for a liquor distribution company. Job descriptio

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