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

Need to make responsive website, Need to make RESPONSIVE WEBSITE NEEDED- Ad...

Need to make RESPONSIVE WEBSITE NEEDED- Adjustments to existing site I presently have a website template with a company called Bludomain. I need to host with another company as

I need help in redesign website, I need help in Redesign Website - Build ou...

I need help in Redesign Website - Build out ONLY I need somebody to redesign my client's website. I have by now created the designs in Photoshop as well as just need someone who ca

Set up the site structure, Structuring the Web site is the primary step tow...

Structuring the Web site is the primary step towards developing the corporate Web site. Structuring comprise creating a folder, that includes all our text files , picture files and

We are looking for an expert to support booking system, Booking Website REQ...

Booking Website REQUIRED We are looking for an expert to support us to complete our website on online booking system in this user will register and access the booking page. D

I am seeking to build a site where people will sign-up, Social Integration ...

Social Integration site I am seeking to build a site where people will sign up for an account. Therefore every time they log in to my site, it will likewise log them into their

Need social networking site in php, Social Networking Site in PHP I have...

Social Networking Site in PHP I have a project that is in want a of a great php coder for a social networking site. Please have very good ratings to bid. Please don't bid if you

I want help in opencart (mijoshop) dev, I want help in Opencart (MijoShop) ...

I want help in Opencart (MijoShop) dev -Bespoke Duty/Vat and shipping We have a client who vends wines which are either purchased to be shipped to the customer (as standard) OR

Prepare a custom website in php only, Prepare a Custom Website in PHP only....

Prepare a Custom Website in PHP only. Do Not propose any CMS for this software. I am also PHP developer. So please note that read cautiously then bid on this project. This is

Hyper text markup language, As specified earlier, HTML is Hyper Text Markup...

As specified earlier, HTML is Hyper Text Markup Language. HTML provides way of displaying any Web pages along with text & images or multimedia content. HTML is not a programming la

App ios - scan qrcode, APP IOS - Scan QRCODE Project Description: We ...

APP IOS - Scan QRCODE Project Description: We need the one team with maximum availability, that indicates us what is required in the project, and configure our hardware as re

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