/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

-1 vote248 views1 answer
Error NG6002: Appears in the NgModule.imports of AppModule, but itself has errors in angular
TypeScript
0 vote168 views1 answer
Typescript function return array
TypeScript
1 vote126 views2 answers
Loop an audio javascript
TypeScript
1 vote167 views1 answer
Jasmine angular contains expression
TypeScript
-1 vote178 views1 answer
Flutter border between expansiontile
TypeScript
1 vote185 views1 answer
Mat datepicker pt-br
TypeScript
0 vote164 views1 answer
Pnpjs get items from list
TypeScript
0 vote222 views1 answer
Sql concepts interview questions
TypeScript
1 vote198 views1 answer
(change) on select not working in mat-select
TypeScript
0 vote197 views1 answer
Discuss climate changes during the Tertiary and Quaternary Periods, and the effects of these changes on geology and vegetation.
TypeScript