In TypeScript, how can we specify that a key is mandatory for an object but it can be referred to by two different names?

Essentially, I'm faced with a situation where I need to handle a style object that must contain either the maxHeight or height properties. If one of these properties is included, the other becomes unnecessary. Despite my efforts, I have been unable to find a way to accomplish this using TypeScript. I attempted to tackle the problem in the following manner, but unfortunately, the solution did not work:

For example:

type Style = {
  ['maxHeight' | 'height': string]: string | number; 
 }

Thank you in advance for any assistance or guidance to relevant documentation!

typescripttypes

Answer №1

One possible solution is to define a union type:

type Dimension = 
    | { maxHeight: string | number }
    | { height: string | number }
;

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