Uploads from Xah Lee

Watch and track your favorite playlist.

Curated by: Xah Lee (847 videos)


Currently Playing: Xah Ep698 Emacs Lisp coding, defvar-keymap

video summary (ai generated) This video focuses on Emacs Lisp coding, specifically discussing the new define-keymap and define-var-keymap functions introduced in Emacs 29, which are designed to replace older key binding commands like define-key and global-set-key (3:43, 4:04). The creator demonstrates how to use these new functions to define keyboard shortcuts in Emacs, explaining their superiority and the gradual transition developers are making to adopt them (4:53, 6:25, 7:04). The video also touches on the practical application of key bindings within custom Emacs Lisp packages, using a CSS mode as an example (10:50, 13:03). A significant portion of the video involves the creator attempting to understand and implement these new functions by examining documentation and existing Emacs Lisp source code, highlighting the complexities and occasional inconsistencies in the documentation, especially concerning keyword arguments (18:48, 43:41).


Tracks in this Playlist

✅ Progress Tracking

Automatically track which videos you have watched. Your completion status is updated at a glance, preventing you from re-watching episodes by mistake.

⏯️ Resume Playback

Never lose your spot. Our custom player remembers your exact video and timestamp, allowing you to dive right back in seamlessly.

📱 Cross-Device Sync

Sync your playlist states, watched progress, and premium preferences across your desktop, laptop, tablet, and mobile phone automatically.

Start Organizing Your YouTube Playlists

Simply paste any YouTube playlist URL or channel link in the application search bar to immediately generate a custom, sorted, and progress-tracked workspace. No registration required to start.

Explore Playlist Guides & How-Tos