/TypeScript/Typescript parameter function type

Typescript parameter function type

class Foo {
    save(callback: (n: number) => any) : void {
        callback(42);
    }
}
var foo = new Foo();

var strCallback = (result: string) : void => {
    alert(result);
}
var numCallback = (result: number) : void => {
    alert(result.toString());
}

foo.save(strCallback); // not OK
foo.save(numCallback); // OK

Source: stackoverflow.com

Similar codes

0 vote301 views1 answer
Object notation string javascript\
TypeScript
0 vote310 views1 answer
Get type of element of array typescript
TypeScript
1 vote345 views1 answer
Python get elements from list of dictionaries
TypeScript
1 vote284 views1 answer
Type 'CameraOriginal' is not assignable to type 'Provider'.
TypeScript
0 vote313 views1 answer
Q5: Identify the five major components of a communications system.
TypeScript
1 vote312 views1 answer
Nmap to find open ports kali linux
TypeScript
0 vote300 views1 answer
Do feral cats have rabies?
TypeScript
2 votes299 views2 answers
Material form
TypeScript
0 vote318 views1 answer
Typescript dynamic type
TypeScript
1 vote342 views1 answer
Mongoose to object keep all fields
TypeScript