java

Douglas Crockford's first Yahoo lecture puts JavaScript in historical context. He traces the language's structure and quirks back through the early decades of computer science and programming language history.

The first 3.5 hours of Tony Alicea's Udemy course on JavaScript's inner workings, covering topics such as first-class functions, closures, prototypal inheritance and how the language behaves under the hood.

James Mickens delivers his comedic rant about JavaScript and web programming, in his usual dry, hyperbolic style. It includes his account of learning the language from the O'Reilly Definitive Guide.

Josh Bloch and Jeremy Manson present the eighth installment of Java Puzzlers at Google I/O 2011, a set of surprising corner cases in the Java language and libraries. It includes puzzlers on traps such as regular expression performance.

Nicholas Zakas of Yahoo discusses architecture for large, modular JavaScript web applications. He lays out the theory behind building front ends that scale in complexity.

A Channel 9 conversation recorded at GOTO 2012 between Anders Hejlsberg (TypeScript) and Lars Bak (Dart). They discuss the two languages and different approaches to making JavaScript development safer, including runtime type checking.

Christian Thalinger presents at the 2015 JVM Language Summit on adding ahead-of-time compilation to the JVM, covering the HotSpot team's AOT work and its relation to warmup and deoptimization.

Brian Peiris demonstrates RiftSketch, a web app where you write JavaScript with Three.js while wearing an Oculus Rift and watch the world around you change live. It runs on Firefox builds with WebVR.

A short screencast tour of JSPM, SystemJS and ES6 features, building a small app with the then-new JavaScript module and package tooling. It shows how JSPM works as a package manager, bundler and loader.

A Netflix JavaScript talk on using Reactive Extensions (Rx) for asynchronous UI code. It covers Observables, composing events such as drag and drop, and sequencing Ajax requests.

Rich Hickey introduces Clojure to the NYC Java Study Group in the first of a two-part talk. It covers reader syntax, core data structures, code-as-data, evaluation, special operators, functions, macros and sequences, assuming no Lisp background.

Douglas Crockford's YUIConf 2011 keynote on why programming style matters, particularly in JavaScript. He draws on science about the brain and shows how tools like JSLint help.

Paul Irish explains how pointerpointer.com works. It uses a hidden canvas of colored Voronoi regions to look up which photo matches the cursor position.

Chris McCord's ElixirConf EU 2019 keynote introducing Phoenix LiveView, which builds interactive server-rendered apps without writing JavaScript. It explains how only changed dynamic parts are sent over a websocket.

Gabriel Lebec's Fullstack Academy talk introduces lambda calculus syntax, the history of mathematical logic, and the essence of functional programming using JavaScript. It also covers combinators, currying and Church encodings.

An episode of FunFunFunction explaining monads in JavaScript as functors that also implement flatMap. It builds on the preceding functor episode and works through code examples.

Douglas Crockford's Nordic.js 2014 talk on 'the better parts' of JavaScript and programming in general. He argues against `this`, `new` and ES6 classes, and for classless, composition-based object patterns, with some broader remarks on building better structures for the future.

Douglas Crockford's Google Tech Talk explains monads without category theory or Haskell, implementing them in JavaScript and tying them to Ajax and promises. He also touches on odd asides such as coloring code by scope.

Paul Irish walks through the jQuery source code and shares ten lessons and interesting techniques from it, aimed at JavaScript developers who want to learn from a widely used library.

Brian Leroux's dotJS 2012 talk WTFJS is a quick, humorous tour of JavaScript's odd behaviors and quirks.

Philip Roberts explains the JavaScript event loop, call stack, callbacks and asynchronous behavior with live visualizations using a tool he built. It demystifies terms like non-blocking and single-threaded.

The original 2012 screencast introducing Meteor, a JavaScript framework for building web apps quickly. It demonstrates realtime updates, latency compensation and low boilerplate.

Stuart Marks explains the intended purpose and proper use of Java 8's Optional class and why it caused so much controversy. He gives guidelines for using its small API correctly.

Java Language Architect Brian Goetz talks at a Clojure conference about the challenges of evolving a mature language like Java while preserving compatibility with existing code and developer expectations. It also gives a look at where the platform is headed.

Brian Lonsdorf explains why Underscore.js falls short as a functional programming library, then introduces currying, composition and point-free style in JavaScript. He argues for data-last argument ordering.

Sebastian Markbage explains how React is moving toward a minimal API surface by leaning on language features and patterns instead of dedicated framework APIs. He also touches on JSX and syntax proposals for future JavaScript.

Ryan Dahl's JSConf EU talk introducing Node.js to the world. He explains the motivation for event-driven, non-blocking I/O, with JavaScript chosen mainly for its asynchronous nature.

James Gosling gives a personal talk at the 50th anniversary seminar of Simula about using the language from 1974 and how it shaped his thinking. He explains how Simula's object model and coroutines influenced the design of Java.

Jake Archibald's JSConf.Asia 2018 talk "In the Loop" explains the browser event loop, covering tasks, microtasks, requestAnimationFrame, and how rendering interleaves with JavaScript. It uses visual walkthroughs to show why code runs in surprising orders and why setTimeout fixes are unreliable.

Cheng Lou's react-europe 2016 talk lays out a mental framework for thinking about abstraction levels in JavaScript tooling, from Angular and Grunt to Webpack and React. It uses that framework to reason about the cost of abstractions and how to choose between competing solutions.

A JSConf 2014 talk visually breaking down algorithms behind everyday UI patterns, such as dropdown menus that vanish when the mouse drifts and picking the nearest target to the cursor. It shows how these are implemented in JavaScript.

Derek Slager's Clojure/conj talk argues that ClojureScript is a pragmatic choice for web development. He addresses common objections, recent improvements, tooling and use cases where it shines.

Ryan Dahl's first presentation of Node.js at JSConf 2009. He pitches event-driven, non-blocking I/O as the motivation, rather than JavaScript itself.

Photopea founder Ivan Kutskir talks about developing a free browser-based photo editor, one of the most complex JavaScript programs ever written, and the web technologies behind it.

C J Silverio, former npm CTO, explains how the JavaScript package commons ended up in the hands of a for-profit company with no accountability. She discusses the cost of running a registry and what the community should do next.

A short unscripted demo of writing FizzBuzz in JavaScript with a generator function on a steno keyboard, typos included. It gives a feel for what real coding in stenography looks like.

Douglas Crockford's YUIConf 2012 evening keynote tries to explain monads in a way programmers can actually understand, in the context of JavaScript. He aims to break the 'monad tutorial curse'.

Pete Hunt of Facebook and Instagram presents React at JSConf.Asia 2013, explaining its design principles and why they seemed shocking at first. He argues that React separates concerns rather than technologies, and the talk also announces the React Chrome developer tools.

Ryan Dahl, the creator of Node.js, introduces the event-driven I/O framework built on V8 with examples, and discusses the v0.4.0 release and its new APIs.

Dylan Beattie's entertaining NDC talk imagines an alternate history of the web, asking what if different decisions had been made on operating systems, browsers and standards. It blends real history with humor.