Direct dependency injection

Question

I would to pass a module as dependency into another module.

The code looks something like this

const result = module({deps: require(“./dependency”}))

function module expects function dependency as argument.

However I get an error that dependency is not a function

However the same code works if I imported const deps=require('./dependency') and then pass deps into module as argument.

Any guidance how we can do dependency injection without declaring const deps

Your snippet is malformed, you're missing the closing ) for the require call. — ThisIsNoZaku, Nov 13 '18 at 22:08
Can you clarify the exact code involved and errors generated - right now you you're saying the error is that "`dependency` is not a function", but there's no reference to `dependency` in your code etc. — James Thorpe, Nov 13 '18 at 22:09
require is a special keyword in for instance nodejs and webpack. It's not part of the javascript standard and might not behave as a function. You don't specify what toolchain you are using. Read this for more info https://stackoverflow.com/questions/9901082/what-is-this-javascript-require — jontro, Nov 13 '18 at 22:10
@JamesThorpe dependency is the name of module that is imported — neo-technoker, Nov 14 '18 at 06:23
{deps: require(“./dependency”).default} does this work ? — Prasanna, Nov 14 '18 at 06:44
@Prasanna you are right.. thanks.. i have answered the question with revised code — neo-technoker, Nov 14 '18 at 10:25

score 0 · Accepted Answer · answered Nov 14 '18 at 10:24

0

i am not sure why .default has to be mentioned when the dependency module already defines the function as export default async function dependency. However the below code works

const result = module({deps: require(“./dependency”}).default)

answered Nov 14 '18 at 10:24

neo-technoker

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I later found out default could be avoided if I used module.exports vs common is export – neo-technoker Nov 28 '18 at 20:32

Direct dependency injection

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