TypeError: util2.strToChars is not a function in Typia 6.10.0 with Angular 18 and TypeScript 5.5.4

[Karbashevskyi]

Here's the updated bug report with the correct Typia version:

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Bug Report

Note that the bug you're reporting may have already been registered in the issues by another user. The bug may also have been fixed in the @next version. For that reason, I recommend checking the old issues and reproducing your code with the @next version before publishing the bug reporting issue.

npm install --save-dev typia@next

When the same error occurs even in the @next version, please fill in the template below:

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📝 Summary

Encountering TypeError: util2.strToChars is not a function when using Typia with Angular 18, TypeScript 5.5.4, and Node.js 20.11.1.

• Typia Version: 6.10.0 (Latest)
• Expected behavior: Typia should run without errors in a standard Angular project.
• Actual behavior: Runtime error occurs, indicating util2.strToChars is not a function.

I encountered this issue during runtime after setting up Typia with Angular and TypeScript. The error suggests that a function (strToChars) is missing or unavailable in a utility module that Typia relies on.

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⏯ Playground Link

[No playground link available as the issue is specific to an Angular setup.]

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💻 Code Occurring the Bug

import {Component} from '@angular/core';
import {Enum} from "@src/module/utility/domain";
import typia, {tags} from "typia";
import {CustomerTypeEnum} from "@customer/domain/enum/customer-type.enum";
import {IBaseEntity} from "@utility/domain/interface";

export interface IBaseEntity<OBJECT_TYPE extends string> {
    // Added by the system
    _id: string & tags.Pattern<'^(?=[a-f\\d]{24}$)(\\d+[a-f]|[a-f]+\\d)'>;
    createdAt: string & tags.Format<'date-time'>;
    updatedAt: string & tags.Format<'date-time'>;
    object: OBJECT_TYPE;
}

export type RIBaseEntity<OBJECT_TYPE extends string> = Required<IBaseEntity<OBJECT_TYPE>>;

/**
 * Declare interface by business logic, if you need case when each property is optional, use Partial<ICustomer>
 */
export interface ICustomer extends IBaseEntity<'CustomerDto'> {
    firstName: string & tags.MaxLength<50> | null;
    lastName: string & tags.MaxLength<50> | null;
    phone: string | null;
    email: string & tags.Format<"email"> | null;
    note: string | null;
    customerType: CustomerTypeEnum & tags.Default<CustomerTypeEnum.new>;
    active: Enum.ActiveEnum & tags.Default<Enum.ActiveEnum.YES>;
}

export const isCustomer = typia.createIs<ICustomer>();
export const validCustomer = typia.createValidate<ICustomer>();
export const randomCustomer = typia.createRandom<ICustomer>();

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'typia-angular-integration';

  constructor() {
    console.log(randomCustomer())
  }
}

Error Trace:

TypeError: util2.strToChars is not a function
    at [file]:[line number]

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💡 Additional Information

• Environment Details:
  • Angular Version: 18.x (Latest)
  • TypeScript Version: 5.5.4
  • Node.js Version: 20.11.1
  • Operating System: MacOS

I’ve ensured that all dependencies are up to date and have also attempted reinstalling node modules using rm -rf node_modules && npm install. Despite this, the issue persists.

This error seems to stem from a missing or deprecated function in one of Typia's dependencies. I was unable to locate strToChars in the utility modules involved.

Any guidance on resolving this would be appreciated!

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Let me know if any further adjustments are needed!

[samchon]

https://typia.io/playground/?script=JYWwDg9gTgLgBDAnmYBDANHA3g1BzAZzgF84AzKCEOAIiRVRoG4AoF4AOxgFMozUAxtzgBJALLcQAI17YWcOAH1gAEwBccAjCic8cAGS5CAOgAKqGDygcAPAHIAegAoA-AF4A2qgC0ZADp+KgC6WABMACzEACQAlE4BKgDUXr5BAD4pZEGJCTF2AHysxGwCEBwEEAA23MaVEHhO8gjIaMZQqBwqVDbikjJQ+U4x6CwxTHAsQA

@ryoppippi This problem comes from the rollup configuration. How shoul do?

[samchon]

@ryoppippi Tried by myself, but failed to escape this problem.

I disabled preserveModules option for a while, just to fix this bug.

If you know how to escape it, please help me.

[ryoppippi]

@samchon I cannot find the strToChars
Where is the function implemented.

[ryoppippi]

@Karbashevskyi If you create a reproduction repository, it makes life easier

[samchon]

@ryoppippi Here it is.

Such _virtual directory exported empty object is used in the ret library.

Also, you can test it with previous typia version.

[ryoppippi]

Ok, let me check
This comes with ret

[ryoppippi]

Hmm, in my local build, it is not missing

[ryoppippi]

Oh, okay. I got it