function print(): (number, string) {
return {1,'my'}
}
Above code shows error, I expect I can use const {num, my} = print(). What's the right way to specify return type?
Try to use a tuple. It looks like this:
function print(): [number, string] {
return [1,'my']
}
const [num, my] = print();
See demo in Typescript Playground
You need to return an object which has a string and a number. Now, this object should contain property names - so, let's define the return type and use it in your function
type myReturnType = {
n: number,
s: string
}
function print():myReturnType {
return {n:1,s: 'my'}
}
let {n, s} = print();
Here is the shorthand version of the above code:
function print():{n: number, s: string}{
return {n:1,s: 'my'}
}
let {n, s} = print();