Builder pattern using TypeScript interfaces

Question

I would like to do something like this:

interface IPoint {
    x : number;
    y : number;
    z? : number;
}
const diag : IPoint = IPoint.x(1)
                      


        

Answer 1

Based on the previous answers I wrote a generic Typescript builder which provides:

• Type-Safety
• Differentiation of optional and required properties
• Generic method (with) for adding parts of the object
• Validation of the object before creating it
• Domain Driven Design conformity (no need to specify methods when using Builder)

If you are interested, you can find further information and examples here: https://github.com/hanterlantant/ts-generic-builder And the npm package here: https://www.npmjs.com/package/ts-generic-builder