While working with JointJS, I came across the defined typings. In my Typescript class, the structure is as follows:
namespace joint {
namespace shapes {
namespace devs {
class Model extends basic.Generic { ... }
}
}
}
namespace basic {
class Generic extends dia.Element { ... }
}
namespace dia {
class Element extends Cell { ... }
class Cell extends Backbone.Model { ... }
}
namespace Backbone {
class Model extends ModelBase {
...
defaults(): ObjectHash;
}
According to this setup, joint.shapes.devs.Model should inherit the 'defaults' property from
Generic <- dia.Element <- dia.Cell <- Backbone.ModelHowever, when attempting to extend this object:
const extendedModel = joint.shapes.devs.Model.extend(
...
), joint.shapes.devs.Model.defaults);
...Typescript indicates that 'defaults' property is not defined in joint.shapes.devs.Model:
error TS2339: Property 'defaults' does not exist on type 'typeof Model'.I also tried invoking a method instead of the property:
const extendedModel = joint.shapes.devs.Model.extend(
...
), joint.shapes.devs.Model.defaults());
However, the same error message persists.
I am currently using Typescript 2.7.2
Therefore, my question is: what could be causing this issue? How can I resolve it?
Thank you!