Build, test, and debug regular expressions
This regex matches DACAST iframe video URLs, specifically the format https://iframe.dacast.com/vod/{channel_id}/{video_id}. It captures the video ID as a group, useful for extracting video identifiers from embed codes or validating the presence of a DACAST player. The pattern requires alphanumeric characters and hyphens for both IDs, with a minimum length of five characters.