File: promiseChaining.ts

package info (click to toggle)
node-typescript 3.3.3333-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 324,548 kB
  • sloc: makefile: 6; sh: 3
file content (10 lines) | stat: -rw-r--r-- 365 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
 
class Chain<T> {
    constructor(public value: T) { }
    then<S>(cb: (x: T) => S): Chain<S> {
        var result = cb(this.value);
        // should get a fresh type parameter which each then call
        var z = this.then(x => result)/*S*/.then(x => "abc")/*string*/.then(x => x.length)/*number*/; // No error
        return new Chain(result);
    }
}