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Intro

Trying A Definition (2)

Agenda

JavaScript Execution Model

Example: Asynchronous Image Loading

Fixed Asynchronous Image Loading

Asynchronous Image Loading Flow

A More Complex Scenario: Personalization

Enter: Promises

Internal State of a Promise

Encoding Flow with Promises

Handling Errors with Promises

Long Running Scripts

How to Handle Long Running Events

Enter: Web Workers

Concurrency Model with Web Worker

Modern Parallel Hardware

Task Parallelism with Web Workers

SIMD Programming

SIMO Examples

Adding SIMD to JavaScript

SIMD Example in JavaScript (2)

Parallel JavaScript (formerly River Trail)

Adding Parallelism to JavaScript

A New Concept: Temporal immutability

Example: Increment (2)

Example: Sum

Parallel JavaScript + Typed Objects: Grayscale

Some Sample Applications

Conclusion

Description:

Explore concurrency and parallel computing in JavaScript through this 41-minute conference talk from Strange Loop 2013. Gain insights into the JavaScript execution model, asynchronous programming techniques, and modern parallel hardware utilization. Discover how to leverage promises for better flow control and error handling, implement web workers for long-running tasks, and harness SIMD programming for performance optimization. Learn about the Parallel JavaScript proposal and its potential impact on future web development. Delve into practical examples, including asynchronous image loading, personalization scenarios, and parallel array operations, to enhance your understanding of concurrent and parallel programming in the JavaScript ecosystem.

Concurrency and Parallel Computing in JavaScript

Strange Loop Conference

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