Is there a way to export an array so that each its value could be imported into another js file?

Question

I was wondering if it's possible to somehow make array/object's children to be exportable into another .js files

Let's say, I have a file a.js with this code:

const vector = ['a', 'b', 'c'];
export default vector;

Array's elements may be functions, collections, whatever...

Is there a way I could do the following in my file b.js?

import {c} from './a.js';
// do something with c

First off what is `const vector = [a: 'a', b: 'b', c: 'c'];`? Perhaps you meant: `const vector = {a: 'a', b: 'b', c: 'c'};`? — jfriend00, Dec 25 '17 at 23:40
I reopened, now that you've made the question a legit array. You can export an array, but array elements are indexed by number, not by value. — jfriend00, Dec 25 '17 at 23:51

score 0 · Answer 1 · answered Dec 25 '17 at 23:52

If you do:

const vector = ['a', 'b', 'c'];
export default vector;

Then, when you import, you have to reference the array element by number or use some other array method on it. Arrays are not indexed by value, they are accessed by their index.

import vector from '/a.js';
console.log(vector[2]);            // 'c'
console.log(vector.indexOf('c'));  // 2

Is there a way I could do the following in my file b.js? import {c} from './a.js';.

No. What you exported has no c property. In fact, the array you exported has no custom properties at all, just the array elements which are accessed like any array element would be.

Is there a way to export an array so that each its value could be imported into another js file?

1 Answers1