ngIf - working with server side condition

Question

I have a condition that I am unable to determine if "not":

*ngIf="searchResults['@odata.count'] !== null && searchResults['@odata.count'] >= 0"

Note, this does not work:

*ngIf="searchResults['@odata.count'] == null && searchResults['@odata.count']< 0"

that I want to write an ngIf "not". Similar to:

*ngIf="!(searchResults['@odata.count'] !== null && searchResults['@odata.count'] >= 0)"

Is there a way to do this solely working with the condition given?

You mean without doing the `!()` part? Also, a small note that this isn't server side logic. Angular runs in the client's browser. — Taplar, Jul 28 '20 at 18:19
What is the value and type of the value of `searchResults['@odata.count']` in the case that you are seeing it not work? — Taplar, Jul 28 '20 at 18:30

score 1 · Accepted Answer · answered Jul 28 '20 at 18:49

1

There are a few things that you could use:

get showSearch() {
  return searchResults['@odata.count'] !== null && searchResults['@odata.count'] >= 0;
}

in template use *ngIf=showSearch and *ngIf=!showSearch

answered Jul 28 '20 at 18:49

andriishupta

also, if searchResults['@odata.count'] == null, how it could be less than zero together with null ? searchResults['@odata.count']< 0 – andriishupta Jul 28 '20 at 18:51

1 Answers1