[Feature]: Custom properties and custom method add in Class

[vijaygurjar]

CheckList

• I agree to follow this project's Code of Conduct
• I have read and followed the Contributing Guide
• I have searched and referenced existing issues, feature requests and discussions
• I am filing a FEATURE request.

Description

New Method and properties add and override

Current State

Based on the documents properties and method will be add but when i am trying to add it gives an error.

Documents:

// declare the methods for typescript
declare module "fabric" {
// to have the properties recognized on the instance and in the constructor
interface Rect {
getText: () => string;
}
// to have the properties typed in the exported object
interface Text {
getText: () => string;
}
}

// then add the methods to the classes:
Rect.prototype.getText = function() { return 'none'; }
Text.prototype.getText = function() { return this.text; }

compile time error shown getText in available in Text and Rect class

please give me a solution if it is available in fabricjs
i am using Angular 17

Additional Context

No response

[vijaygurjar]

now got the solution add custom properties and method but not able to find how to assign default values to that properties

[vijaygurjar]

Also got the solution for set defaults

[asturur]

https://fabricjs.com/docs/using-custom-properties/

[vijaygurjar]

Thanks @asturur got the solution