Solved

Accessing functions in javascript

Posted on 2014-02-08
9
379 Views
Last Modified: 2014-02-10
Hi Experts,

I want to access functions defined in javascript file (foo.js) from sample.js  file. These javascript files reside in the same folder.

[subtitle]foo.js[/subtitle]

function foo() {

}

foo.ftype.Isempty=function(){

}

//Returns a value in specific format

foo.Telformat=function(param){

}

//Returns true / false

foo.ValidateTel=function(param){

}

//Returns true / false

foo.Isnumber=function(param){

}

[subtitle]sample.js[/subtitle]

function testall (someparam)
{

//Here I need to call foo.js file helper functions

}

Open in new window

0
Comment
Question by:ksd123
  • 4
  • 3
  • 2
9 Comments
 
LVL 82

Expert Comment

by:leakim971
ID: 39844030
to use function from another file you need to load it with your browser

<script src="/path/to/same/folder/foo.js"></script>
<script src="/path/to/same/folder/sample.js"></script>

Open in new window

0
 

Author Comment

by:ksd123
ID: 39844062
Basically foo.js contains generic functions that  will return boolean / some values.So in the sample.js file I have a function called testall and  want to invoke generic fucntions.

sample.js

function testall (someparam)
{

//Here I want to invoke / call the functions defined in the foo.js file 

}

Open in new window

0
 
LVL 82

Expert Comment

by:leakim971
ID: 39844069
if you load the scripts as suggested in my first post, there's no problem
0
 

Author Comment

by:ksd123
ID: 39844078
I did n't get you. I am c# developer ,suppose if I have a class (common.cs) and have methods for  Format,reverse of string,Isnumber etc. I can invoke these methods in other classes .In sample.cs file  to access common methods , I will  instantiate common class and pass parameters to these  methods as required.In javascript ,How can I achieve this?
0
DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

 
LVL 82

Accepted Solution

by:
leakim971 earned 200 total points
ID: 39844089
In JavaScript you must load the script in the page before the script using the fonction inside. You don't have to do anything else. Don't need to have a référence inside simple.JS.
0
 
LVL 83

Assisted Solution

by:Dave Baldwin
Dave Baldwin earned 100 total points
ID: 39844290
@leakim971 is correct.  Javascript methods are different than something like C#.  C# (for web pages) runs on the server.  Javascript runs in the browser.  When a web page is opened that contains javascript, the browser must load all of the files because javascript itself isn't allowed to directly access files on the client or the server.  It can only work with what the browser has loaded.
0
 

Author Comment

by:ksd123
ID: 39845022
Mat be my question is not clear,let me put in this way actually I am doing model validation in angularjs and checking  user input is valid or not.Suppose if user enter's invalid data in the text box and  have a function in sample.js file that takes input data from form and checks valid or invalid.To do this I want to invoke common  methods(IsNumber,ValidateTel etc) and return true (no msg) or false (Show error msg in the UI).In this case, I don't have to do anything?
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 39845038
This page http://docs.angularjs.org/tutorial/step_02 shows part of how angularjs is used.  It show including the necessary javascript files in the web page so that the application code has access to the functions that are needed.  You do have to include the necessary files in script links so they will be loaded by the browser and be available.
0
 

Author Closing Comment

by:ksd123
ID: 39849418
Thank you guys
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In this article you'll learn how to use Ajax calls within your CodeIgniter application. To explain this, I'll illustrate how to implement a simple contact form to allow visitors to send you an email through your web site.
JavaScript can be used in a browser to change parts of a webpage dynamically. It begins with the following pattern: If condition W is true, do thing X to target Y after event Z. Below are some tips and tricks to help you get started with JavaScript …
In this fourth video of the Xpdf series, we discuss and demonstrate the PDFinfo utility, which retrieves the contents of a PDF's Info Dictionary, as well as some other information, including the page count. We show how to isolate the page count in a…
In this seventh video of the Xpdf series, we discuss and demonstrate the PDFfonts utility, which lists all the fonts used in a PDF file. It does this via a command line interface, making it suitable for use in programs, scripts, batch files — any pl…

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now