Views Conditional

Views Conditional is a simple module that allows you to define conditionals (if xxx then yyy)
with fields in views.

Drupal 9/10 Conditions include:

• Equal To
• Not Equal To
• Greater Than
• Greater Than or Equals
• Less Than
• Less Than or Equals
• Empty
• Not Empty
• Contains
• Does Not Contain
• Length Equal To
• Length Not Equal To
• Length Greater Than
• Length Less Than

Views conditional allows you to output text based on the result of the condition.

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How to use Views Conditional in your Views:
1. Create a view. Add some fields under "FIELDS".
2. Click on "ADD" next to fields. Scroll down to "Views: Views Conditional", probably found near the bottom of the list.
3. Add and configure fields...
4. Choose a field to run a condition against, and provide values accordingly.
5. Save, views conditional handles the logic and returns as specified.

Documentation

Read the WebWash Tutorial for Views Conditional

Note:
In many cases since Drupal 8, this module may be obsolete, because using Twig for Views rewriting we can now use conditional logic.

{% if {{ field_show_other_flag }} %}
  {{ field_other_thing }}
{% else %}
  {{ field_main_thing }}
{% endif %}