How to create method for multiple getter in TypeScript

Hi,

get App1(): boolean {

this. service.app1;

}

get App2(): boolean {

this. service.app2;

}

get App3(): boolean {

this. service.app3;

}

get App4(): boolean {

this. service.app4;

}

get App5(): boolean {

this. service.app5;

}

How to create method for all above 5 getter. 

Thanks in Advance