Please I have a problem here. I can't read the data from a JSON file:
<i>{{ exform.get('firstname').hasError("required") ? "{{ 'hospitaladmin.firstname.error.required' | translate }}" : '' }}</i>
But here it works:
placeholder="{{ 'hospitaladmin.search' | translate }}"
Any idea about it?
Just rewrite your expression a little bit to keep things simple:
<i>{{ exform.get('firstname').hasError("required") ? (hospitaladmin.firstname.error.required | translate) : '' }}</i>
And for your placeholder:
[placeholder]="hospitaladmin.search | translate"