what are intersection type?

[Sascha]

intersection type are create a new type by extending exciting types using
& operator


interface type1{...}
interface type2{...}
type type3 = type1 & type2




using & works same way as using extends clause with only difference being
in way they resole conflicts


//these are two interfaces with same property but with incompatible types
interface type1{
property:string
}
interface type2{
property:number
}
type3 = type1 & type2




type3 will result in never type because
TypeScript will try to combine the types regardless


interface type2 extends type1{
property:number
}




here typescript will throw an error because the types are incompatible

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