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07 Modules

anjali0706 edited this page Aug 12, 2019 · 7 revisions

Note: When you are using export = to export your module, the import has to use require("file path of module-name") to import it. Creating Class using the export module and name this file as like a test.ts**

class ClassName{ Name: string; constructor(name: string) { this.Name = name; } FunctionName() { return this.Name; } }

export = ClassName;

Creating another file test1.ts in which you import module from previous file test.ts like as and in require function you will pass the file name like as

import ClassName = require("./test"); let a = new className("Ram Kapoor"); document.write(a.FunctionName())

Module Loader

Modules cannot work on its own, so you need module loader to locate the import dependencies as you have seen in examples shown above. The module loader available is CommonJS for nodejs and Require.js to run in the browser.

To compile code using CommonJS module use following command:

tsc --module commonjs test1.ts

To compile code using Requirejs module use following command:

tsc --module amd test1.ts

The dependent files will get converted to js file with the above command. Ii will create test.js and test1.js files

To test it using require.js, you need to create a file called main.js, which has reference to the dependencies. The folder structure of Module Files are

12-Modules/ employee.js
employeedata.js
main.js
require.js // **you can get this file from github or npm install requirejs**
TestEmployeeData.html

Now when you run this npm install requirejs command it will create one folder name as node modules inside your folder and inside this folder require folder there is one file require.js which you have to add in your folder.

Now create main.js and following code define(function (require) { var test = require("./test"); # here you will pass file name var test1 = require("./test1"); # here you will pass file name });

Next is to create an HTML file name as a test.html where you want to the output to show in Browser

<!DOCTYPE html><br> <html><br> <head><br> <title>Typescript Module Example</title> <br> <script data-main="main" src="require.js"></script> <br> </head><br> <body><br>

</body><br> </html>

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