I am encountering a TypeScript error with the following code. In this interface, the 'items' property can be either an object or an array depending on the code and response. I am unsure how to specify the datatype of 'array/object/any', particularly for the 'items' property.
export interface Test {
items: {
test1: testing[],
test2: testing[]
}
}
To allow a property to have multiple types, you can implement the following approach:
export interface Data {
items: { type1: info[], type2: info[] } | info[] | any
}
To enhance readability, consider defining additional interfaces:
export interface InfoType {
type1: info[],
type2: info[]
}
export interface Data {
items: InfoType | info[] | any
}
You can also transform this into a generic and reusable DataType:
export interface InfoType<T> {
type1: T[],
type2: T[]
}
export type Information<T> = InfoType<T> | T[] | any;
export interface Data {
items: Information<info>
}
(it is generally not recommended to use lowercase for classes or types)
It is necessary to create a new interface for each new object that is added.
export interface Example {
elements: Element
}
export interface Element{
prop1: tests[],
prop2: tests[]
}
export interface tests{
attribute:value;
}
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