Use common Javascript file in Angular and nodeJS

Question

I have a javascript file named sum.js

var addNumber = function (a,b){
  return a + b;
}
exports.addNumber = addNumber;

I want to use same sum.js file's addNumber function in nodeJS and in Angular 5. How can I do it. Is there any ways to do it?

Your help will be highly appreciated.

@ibenjelloun yeah right it should work in angular and javascript. — Saurabh Agrawal
– Saurabh Agrawal, Commented Oct 25, 2018 at 13:57

Saurabh Agrawal · Accepted Answer · 2018-10-26 07:13:22Z

2

I am able to use it in NodeJS as

var sum = require('./sum.js');

But I was not able to use it in Angular, So I declared var require: any; on the top.

 declare var require: any;
 var sum = require('./sum.js');

I found this solution.

answered Oct 26, 2018 at 7:13

Saurabh Agrawal

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Comments

mruanova · Accepted Answer · 2018-10-25 13:59:47Z

0

You can create an npm package and use it in both:

https://medium.freecodecamp.org/how-to-make-a-beautiful-tiny-npm-package-and-publish-it-2881d4307f78

answered Oct 25, 2018 at 13:59

mruanova

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1 Comment

Saurabh Agrawal Over a year ago

During development it will be so tedious to build it and then use it in angular and node.. And not 100% if it'll at both end ie Node and angular..

djain4 · Accepted Answer · 2018-10-25 14:47:24Z

0

You can give the reference of your js file in angular-cli.json like below

"scripts": [
    ....
    "./assets/js/sum.js"
],

and then in your .ts of angular you can directly use it by declaring it like

import * as sum from '../../........./sum.js' //ref of ur file

class xyz {
   let a = 0,b=1
   constructor() { sum.addNumber(a, b); }
}

edited Oct 25, 2018 at 14:47

answered Oct 25, 2018 at 14:34

djain4

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2 Comments

Saurabh Agrawal Over a year ago

I have thousands of functions in .js file so each time I'll have to do this. Or I can access it using *?

djain4 Over a year ago

Also if each of your js file returns an object, then you can directly have that as " declare var objectName : any

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