1

Trying to do something relatively simple. I've 2 LWC component under the lwc folder: lwc/cmp1 and lwc/cmp2

How can I create a new ES6 module that will serve as a utils.js file and then import it to each of cmp1 and cmp2?

I tried creating the utils.js file on cmp1 folder but couldn't import it to cmp2. Tried creating a new folder under lwc folder but it still didn't work (can't import).

The error I keep on getting is:

force-app/main/default/lwc/utils/utils.js  LWC1011: Failed to resolve import "../utils/utils" from "cmp1.js". Please add "../utils/utils" file to the component folder.

There is no problem with the path given, VSCode easily find the related path and indicates no errors, only when trying to deploy to Salesforce

6

You should not use "../utils/utils" for imports from modules. It should be 'c/utils'.

Implementation:

Create utils module:

sfdx force:lightning:component:create --type lwc -n utils -d force-app/main/default/lwc

Delete utils.html file.

Put below code in utils.js:

// mortage.js
const getTermOptions = () => {
    return [
        { label: '20 years', value: 20 },
        { label: '25 years', value: 25 },
    ];
};

const calculateMonthlyPayment = (principal, years, rate) => {
    // Logic
};

export { getTermOptions, calculateMonthlyPayment };

Now deploy this module:

sfdx force:source:deploy -p force-app/main/default/lwc/utils

Now, in your component cmp1 which is already created and deployed, import above utils module like below:

import { getTermOptions, calculateMonthlyPayment } from 'c/utils';

Now, you can use getTermOptions() inside the class of cmp1.js file.

2

you need to create service component (component without *.html file).

Here is the example from documentation.

Your utils file.

// mortage.js
const getTermOptions = () => {
    return [
        { label: '20 years', value: 20 },
        { label: '25 years', value: 25 },
    ];
};

const calculateMonthlyPayment = (principal, years, rate) => {
    // Logic
};

export { getTermOptions, calculateMonthlyPayment };

Your import statement in cmp1 or cmp2.

import { getTermOptions, calculateMonthlyPayment } from 'c/mortgage';

For more information follow LWC documentation provided earlier and spec for import statements.

Hopefully, that will help.

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