using array contains cloud_firestore code example

Example 1: php nested array contains

in_array($search, array_column($array, 'name'))

Example 2: string contains in javascript

const string = "foo";
const substring = "oo";

console.log(string.includes(substring));

Example 3: java list contains object with property

boolean found = list.stream()
              .anyMatch(p -> p.name.equals(personName));