YUI Library / The JavaScript Trilogy by Douglas Crockford

In this presentation (the third of a three-part series) Douglas Crockford looks closely at code patterns from which JavaScript programmers can choose in authoring their applications. He compares familiar constructs like the Pseudoclassical Pattern with more unique patterns like the Parasitic Pattern that (he argues) run more "with the grain" of JavaScript.

In an internal tech talk at Yahoo! in 2006, Douglas Crockford delves into the sordid history of the DOM: that "vast source of incompatibility, pain and misery" that frontend engineers love to hate.

In this 2007 presentation at Yahoo!, which is meant to be the beginning of a three-course sequence (followed by "Theory of the DOM" and then "Advanced JavaScript"), Douglas Crockford explores not only the language as it is today but also how the language came to be the way it is.

Note: there's a title at the opening that claims this is "Part 1 of 4", but this video contains all four parts edited together. No need to go searching for the missing parts.