File: optionalFunctionArgAssignability.ts

package info (click to toggle)
node-typescript 2.1.5-1~bpo8%2B1
  • links: PTS, VCS
  • area: main
  • in suites: jessie-backports
  • size: 203,960 kB
  • sloc: sh: 11; makefile: 5
file content (7 lines) | stat: -rw-r--r-- 416 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
 
interface Promise<T> {
    then<U>(onFulfill?: (value: T) => U, onReject?: (reason: any) => U): Promise<U>;
}
 
var a = function then<U>(onFulfill?: (value: string) => U, onReject?: (reason: any) => U): Promise<U> { return null };
var b = function then<U>(onFulFill?: (value: number) => U, onReject?: (reason: any) => U): Promise<U> { return null };
a = b; // error because number is not assignable to string