Using Slice Pipe with variable parameters in *ngFor

Question

Using the Angular2 pipe slice I can do something like this to only show the first five elements of my items.

<ion-item *ngFor='let item of items | slice:0:5"> 

How can I use variables instead of hardcoding 0 and 5? I want to do something like this and define start and end in my *.ts file.

<ion-item *ngFor='let item of items | slice:"start":"end"'> 

Answer 1

Just remove "(double quotes) from the start and end variable

<ion-item *ngFor='let item of items | slice:start:end'>