Missing null check in pipe: Wrong parameter in TimeagoPipe

[BojanKogoj]

Current behavior

Pipe crashes when value is missing

ERROR SyntaxError: Wrong parameter in TimeagoPipe. Expected a valid date, received: null

This will happen while you wait for content to load

{{ item?.createdAt | timeago }}

This will most likely happen during testing, when you don't mock whole object.

Expected behavior

Display nothing

How do you think that we should fix this?

Add null check

Minimal reproduction of the problem with instructions

{{ '' | timeago}}
{{ undefined | timeago}}
{{ null | timeago}}

Environment

ngx-timeago version: ^1.0.4
Angular version: 10.0.12