—Callback Nesting Nightmare
6m 15s
—What You Will Get out of This Course
2m 10s
—What You Need to Know
6m 39s
—How to Use This Course
0m 46s
—Callbacks
4m 39s
—Double-edged Sword: Explicit Async Seams
1m 15s
—Con: Seams Rip Across Program
4m 7s
—Con: Another Error Mechanism
3m 6s
—Con: Hard to Reuse Error-handling Logic
1m 25s
—Con: Difficult to Understand
2m 40s
—Challenge: Synchronize Multiple Callbacks
4m 49s
—Solution
6m 7s
—Parallelism: Wouldn't This Be Nice?
2m 41s
—One-shot Events
3m 0s
—Takeaways
4m 26s
—Cloning the Starting Point from GitHub
1m 46s
—Operation Examples
7m 32s
—Running the Tests
1m 59s
—WebStorm Settings
2m 42s
—Auto Running Tests
1m 49s
—A Few Pointers About Using Mocha
3m 58s
—Callback Examples
3m 47s
—Debugging
2m 31s
Building a Promise Framework
- 50m 54s
—Why Build a Promise Framework?
2m 19s
—Challenge - Split Success and Error Callbacks
2m 15s
—Solution - Split Success and Error Callbacks
3m 51s
—Add an Operations Suite
1m 25s
—Using Done to Assert
2m 55s
—Challenge - Pass the Callback Later
2m 24s
—Solution - Pass the Callback Later
5m 36s
—Question - Why Might This Separation Be Helpful?
0m 34s
—Timing Safety without Coupling and Nesting
4m 0s
—Challenge - Register Multiple Callbacks
5m 7s
—Solution
3m 0s
—Splitting Registration of Success and Error Callbacks
6m 31s
—Convert getWeather to fetchWeather
2m 48s
—Extracting the Operation Type
4m 57s
—Operation Type Benefits
3m 5s
Chaining Operations (Promises)
- 50m 46s
—Get Me a Cup of Coffee
6m 53s
—Challenge - Register a Callback Asynchronously
3m 12s
—Solution - Register a Callback Asynchronously
4m 0s
—Challenge - Parallelism
1m 38s
—Solution - Parallelism
4m 37s
—Challenge - Unnesting
1m 13s
—Solution - Unnesting
4m 0s
—Forwarding Completion
2m 9s
—Waiting for the Completion of the Completion
1m 42s
—Operation Does the Forwarding
6m 23s
—Where Did the Nesting Go?
1m 45s
—And Then
2m 35s
—Chaining Recap
10m 33s
Cushioning Callbacks
- 54m 5s
—Shifting Perspective
2m 21s
—Challenge - Error Recovery
1m 51s
—Solution - Error Recovery
5m 42s
—Async Error Recovery and Challenge - Forwarding Success
4m 36s
—Forwarding Success and Challenge
2m 53s
—Solution - Forwarding Errors
5m 58s
—Reusing Error Handlers
1m 54s
—Synchronous Result Transformation
5m 53s
—Recover from Thrown Errors Too
4m 13s
—Recover from Error Errors
1m 27s
—Operations Should Only Complete One Time
2m 52s
—Block Multiple Failures
0m 47s
—Surrepticious Synchronicity
7m 6s
—Ensuring Asynchronicity
2m 51s
—Summary of Protections
3m 33s
ES6 Promises and Beyond
- 1h 11m
—Promises are Not New
4m 44s
—Terminology
2m 19s
—Why Is it Called Resolve?
6m 34s
—Reworking Resolve
5m 18s
—Challenge - Fixing Resolve
4m 41s
—Defining Resolved
4m 57s
—Executor - the Revealing Module Pattern
7m 49s
—Deferred Versus Thenable
1m 31s
—Executor with Callbacks
2m 34s
—Static Resolve and Reject Functions
1m 50s
—Testing with Promises and ES6 Promise Backward Compatibility
4m 15s
—Why Third Party Promise Libraries Are Still Useful
2m 34s
—Finally
1m 15s
—Promisifying Existing Librarires You Love
3m 55s
—Promise Collection Ops
1m 50s
—Unhandled Rejection
6m 42s
—Quizzary
8m 48s
Building a Generator-based Control Flow Function
- 1h 7m
—Promises Aren't Perfect
3m 45s
—Iterators
7m 38s
—Generators
3m 4s
—Generators Are Suspendable and Resumable Functions
5m 35s
—When Resuming a Generator We Can Pass Errors
2m 20s
—Calendars
3m 41s
—Debugging Generators
5m 16s
—I Would Like to Yield Promises
2m 20s
—Yielding a Promise to My Assistant
4m 10s
—Assisting with Infinite Promises
7m 9s
—Four Async Ops in Four Lines of Code
2m 5s
—Safety with Promise.resolve
1m 46s
—Throwing Errors Back into the Generator
5m 40s
—Catching Exceptions Throw from Generators
2m 56s
—Catching Unhandled Errors in Our Assistant
3m 39s
—Knowing When the Assistant Is Done
3m 30s
—Wow
2m 22s
ES2018 Async/Await and Other Generator Control Flow Libraries
- 20m 30s
—co and Bluebird's Promise.coroutine
2m 39s
—Server Side Web Apps
1m 25s
—Async and Await
4m 19s
—Challenge - Parallel Requests with Async Await
0m 48s
—Parallel Solutions and Catching Async Function Errors
3m 51s
—Awaiting Promise.all
1m 51s
—Challenge - Promises A+ and ES6 Spec Tests
1m 49s
—The End - Value Proposition Revisited
3m 44s
