Javascript on Ye Joo Park's Bloghttps://park.is/categories/javascript/Recent content in Javascript on Ye Joo Park's BlogHugoen-USSat, 03 Aug 2024 00:00:00 +0000Extract Timestamp from UUID v7 using Javascripthttps://park.is/blog_posts/20240803_extracting_timestamp_from_uuid_v7/Sat, 03 Aug 2024 00:00:00 +0000https://park.is/blog_posts/20240803_extracting_timestamp_from_uuid_v7/<h2 id="time-based-uuids">Time-based UUIDs</h2> <p>A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify records or information.</p> <p>Time-based UUIDs are a category of UUIDs that incorporate the current timestamp into their structure, allowing for chronological ordering of the generated UUIDs. They are particularly useful in distributed systems where unique identifiers that are sortable by creation time are beneficial. There are several versions of time-based UUIDs, including UUID v1, UUID v6, and UUID v7, each with different methods of encoding the timestamp and other components.</p>