Trouble in Angular6 project with Typescript

[zedzorander]

I'm sure i'm doing something dumb but I'm trying to use this in my project and I'm having trouble getting it to work. It says it can't find a declaration file and that the index.js file implicitly has an any type. I added this to my tsconfig file "noImplicitAny": false, but it's still giving me this warning. I'm importing it in my component like this: import * as PasswordValidator from '../../../node_modules/password-validator';. I've also tried it like this: import { PasswordValidator } from '../../../node_modules/password-validator';.

When I console log schema it gives me this error message..
ERROR TypeError: Cannot read property 'is' of undefined at AccountFormComponent.push../src/app/account-form/account-form.component.ts.AccountFormComponent.validatePassword (account-form.component.ts:67) at Object.eval [as updateRenderer] (AccountFormComponent.html:69) at Object.debugUpdateRenderer [as updateRenderer] (core.js:10879) at checkAndUpdateView (core.js:10255) at callViewAction (core.js:10491) at execComponentViewsAction (core.js:10433) at checkAndUpdateView (core.js:10256) at callViewAction (core.js:10491) at execEmbeddedViewsAction (core.js:10454) at checkAndUpdateView (core.js:10251)

I'm just using the example code in your README. Not sure where to go from here. Thanks

[tarunbatra]

Hey @zedzorander, thanks for reporting the issue.

I'm not well versed with TypeScript and Angular 6. The issue you mentioned doesn't look like an issue with password-validator, given it's pretty standard JavaScript module. I'll dig for possible reasons of this behaviour and update here, if any.

[zedzorander]

Yeah, my program isn't recognizing the module for some reason. I found some stuff which makes me think it needs a definition file for it to work. Here is an article I found that seems to be related to what I was experiencing. It might be a good start. https://academind.com/learn/angular/angular-q-a/#integrate-third-party-libraries. Thanks.

[tarunbatra]

Yes, the link you shared suggests a way to add libraries without any declaration file. In my understanding it should look something like:

import 'password-validator';
declare var PasswordValidator: any;

@Component({...})
export class MyComponent {...}

[mohan-murali]

I think the problem @zedzorander is facing is with ES6 imports. I used "import PasswordValidator from 'password-validator';" and it is working for me. Could you please check that?

[hajimurtaza]

Try this, it will work. @zedzorander

const passwordValidation = require('../../../node_modules/password-validator');

declare var doesnt work on lot of third party libraries, this will definately work.

[marcomartinscastanho]

+1 having troubles with Typescript.

I'm importing as
import PasswordValidator from "password-validator";

declaring the schema as
const passwordSchema = new PasswordValidator();

and getting the following error
TypeError: password_validator_1.default is not a constructor

[tarunbatra]

Hey @marcomartinscastanho thanks for describing your issue. I tried reproducing this but failed.

Here's a stackblitz url showing the password-validator being imported in a sample TypeScript project. Hopefully you will be able to resolve the issue. If not, can you share a reproducible example of the issue?

[khofesh]

+1 having troubles with Typescript.

I'm importing as
import PasswordValidator from "password-validator";

declaring the schema as
const passwordSchema = new PasswordValidator();

and getting the following error
TypeError: password_validator_1.default is not a constructor

same problem in nestjs,
error: TypeError: password_validator_1.default is not a constructor

[tarunbatra]

error: TypeError: password_validator_1.default is not a constructor

This error should be fixed in v5.1.2

[khaitranhq]

@tarunbatra I met this error with 5.3.0

+1 having troubles with Typescript.

I'm importing as import PasswordValidator from "password-validator";

declaring the schema as const passwordSchema = new PasswordValidator();

and getting the following error TypeError: password_validator_1.default is not a constructor