How to select a specific export from file with a variable?

Question

I am using react and working with a basic export file containing contracts, here's how it looks like:

export const contract1 = ....
export const contract2 = ....
export const contract3 = ....
export const contract4 = ....

Then in another file, I import them with:

import * as P from "../filepath"

const function = (contractVariable)=>{
     let contract =  P.contractVariable;
...
}

I want to select the contract being exported according to the variable in my function. Is that possible?

score 2 · Answer 1 · edited May 25 '21 at 10:36

2

This is how you can dynamically access object properties.

let contract =  P[contractVariable];

edited May 25 '21 at 10:36

Ivan Bila

answered May 25 '21 at 05:17

Tushar Shahi

Nice! see also [this](https://stackoverflow.com/questions/4244896/dynamically-access-object-property-using-variable#4244912) and [this](https://stackoverflow.com/questions/4968406/javascript-property-access-dot-notation-vs-brackets) – Ivan Bila May 25 '21 at 05:32

score 0 · Answer 2 · answered May 25 '21 at 14:05

0

Answer above is very helpful. I found another issue which was my variable was actually only the id (1, 2, 3, or 4). With that help I got it by using:

let contract = P.[`contract`+`${contractId}`]

answered May 25 '21 at 14:05

Yan Digilov

2 Answers2