问题
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"'>
回答1:
Just remove "(double quotes) from the start and end variable
<ion-item *ngFor='let item of items | slice:start:end'>
来源：https://stackoverflow.com/questions/44944570/using-slice-pipe-with-variable-parameters-in-ngfor