8 lines
264 B
TypeScript
8 lines
264 B
TypeScript
|
|
export default function add(x: number) {
|
|
const sum = (y: number): any => add(x + y);
|
|
// set .valueOf to return the current sum when the object is coerced to a primitive
|
|
// for example, when it is compared to a number
|
|
sum.valueOf = () => x;
|
|
return sum;
|
|
} |