I am unfamiliar with TypeScript and I have an object named obj with 3 properties: a, b, c. However, it is important to note that b and c cannot exist together in the same object. So, my object will either be:
obj = {
a: 'xxx',
b: 'xxx'
}
or
obj = {
a: 'xxx',
c: 'xxx'
}
How can I properly define the type of obj in TypeScript?
Typescript serves a different purpose than what you are trying to achieve, as it allows you to define the structure of your objects but not the relation you desire.
There are two possible approaches to solving this issue. Firstly, you can define two types and specify that your final object is either type A or type B:
const myObj: typeA | typeB;
In typeA, you would define properties a and c, while in typeB, you would define properties a and b.
Alternatively, you could approach it this way:
You define
obj = {
'a': string,
'b'?: string,
'c'?: string
}
You make both parameters optional and handle all logic checks in your component or .ts file.
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