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 design required for graphic company, Web Design A digital media as w...

Web Design A digital media as well as graphic company is seeking an individual with web experience to work with the company to update as well as manage its four web sites. De

Need joomla upgrade, Joomla Upgrade It has come to our attention that yo...

Joomla Upgrade It has come to our attention that you have at least one installation of Joomla 1.5.x - 2.5.16. The 1.5.x version has been deprecated by Joomla for over a year,

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

In search of a developer team to build advanced website, In search of a dev...

In search of a developer team to build advanced website with two web applications In search of an experienced team to build a state of the art website for my hair company that i

Send an email via php, Only perform this function if the email address subm...

Only perform this function if the email address submitted is valid and its limit has not been exceeded, and of course the original reporter name and password Authentication has bee

I want a continuing education website, Continuing Education Website We w...

Continuing Education Website We will be selecting an expert within a week if one meets our needs. Work with databases: php/mysql

I want a help in moodle modification, I want a help in Moodle modification ...

I want a help in Moodle modification I need modifications to Moodle to permit for many schools to use the same software, however no school may see each other's teachers or stude

Web programmer to develop for web form in lua, Web programmer to develop 4 ...

Web programmer to develop 4 web forms in LUA We want to develop 4 forms for a web server that simply take the user input as well as save it to the system. No database or else

Need help to convert wix website to shopify, Need help to Convert wix websi...

Need help to Convert wix website to shopify We want to convert our wix web store to shopify platform. No requirement to change the design. Desired Skills are Shopify

I want a video player thumbnail script, Video player/thumbnail swap-out scr...

Video player/thumbnail swap-out script needed I want a video player thumbnail script. There will be one big, main video, adjacent to either three or four thumbnails of other vid

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