Delimit and create array

No trolling. A genuine question. I thought the info provided would suffice.

I came across this post with the following code snippet: Exclude term from being displayed in array

{{ $exclude := slice "London" "Berlin" }}
{{ range .Params.locations }}
    {{ $location := . }}
	{{ with not (in $exclude . ) }}
	 <li>
	    <a href="{{ $location | urlize }}" title="{{ $location }}">{{ $location }}</a>
	</li>
	{{ end }}
{{ end }}

I have adapted it to my project, like so:

{{range where .Site.RegularPages "Type" "not in" (slice "catalog) }}
...
...
    {{ $exclude := slice "London" "Berlin" }}
    {{ range .Params.locations }}
        {{ $location := . }}
    	{{ with not (in $exclude . ) }}
    	 {{ $location }}
    	{{ end }}
    {{ end }}
{{end }}

.Params.locations is an array, like so ["New York", "London"]