Webpack - warn when import is undefined / not declared

Question

Is there a way to get a warning/error message when imports are undefined, i.e. not declared in a file that I am importing from?

// file1.js export const var1 = 'var1' // file2.js import { var2 } from './file1' var2() // this will throw an error

How to solve this issue?

I am using webpack in version 3.11.0

First, what is your scenario? Because this is a perfect example of the "compiler" helping you out. — PlayMa256
– PlayMa256, Commented Aug 6, 2018 at 11:21
I've moved like ~300files and want to make sure every import works correctly — feerlay
– feerlay, Commented Aug 6, 2018 at 12:49
Would this really makes sense? If you are trying to import something that does not exists, it would break when the code tries to get required anyways. — PlayMa256
– PlayMa256, Commented Aug 6, 2018 at 13:47
It doesn't break when the code tries to get required. It breakes when the code gets executed - unfortunately — feerlay
– feerlay, Commented Aug 6, 2018 at 16:34

sdgluck · Accepted Answer · 2018-08-06 17:19:08Z

2

{ module: { strictExportPresence: true } }

answered Aug 6, 2018 at 17:19

27.8k12 gold badges82 silver badges96 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1