[BUG] [Javascript] Setting a property as default doesn't work

[Poolmann]

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

openapi-generator version

7.8.0

OpenAPI declaration file content or url

openapi: 3.0.0
info:
  title: Title
  description: Title
  version: 1.0.0
paths:
  '/user':
    get:
      responses:
        200:
          description: "success"
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RequiredProperties'

components:
  schemas:
    RequiredProperties:
      type: object
      required:
        - requiredWithDefault
        - requiredWithoutDefault
      properties:
        requiredWithDefault:
          type: string
          default: "4.5.0"
        requiredWithoutDefault:
          type: string
        notRequiredWithDefault:
          type: string
          default: "4.5.0"
        notRequiredWithoutDefault:
          type: string

Generation Details

java -jar openapi-generator-cli.jar generate -i required.yaml -g javascript -o req_test

Steps to reproduce

Generate client, run:

var Title = require("title");

var test = new Title.RequiredProperties();
console.log(test)

Output:

RequiredProperties {
  requiredWithDefault: '4.5.0',
  requiredWithoutDefault: undefined
}

I would expect properties with a default to be initialized as well (with the DEFAULT). Especially since this is the case with all the other generators that I'm using (Java, Python, C#, PHP).

[wing328]

I would expect properties with a default to be initialized as well (with the DEFAULT).

thanks for reporting the issue.

May I know if you've time to contribute a PR to add the default value support in the JS client? We can work with you on that.