Haneefa: Asynchronous Programming , 3 weeks

[Haneefa-Shaik]

Asynchronous Programming

Learning Objectives

• 🥚 You understand the JavaScript Event Loop, and can demonstrate this by using setTimeout and setInterval to schedule simple tasks.
• 🥚 You can explain why Asynchronous Programming is important for programs that have blocking and non-blocking tasks.
• 🥚 You can explain the basics of the Client/Server model and HTTP requests and can fetch data from RESTful APIs.
• 🐣 You can break down an asynchronous problem into smaller tasks and solve it using promises. This includes identify which tasks depend on each other and which are independent:
  • dependent tasks: The return value from one task is required to start the next task, these must be completed in a specific order - .then
  • independent tasks: These tasks do not use each other's return values, they can be completed at the same time - Promise.allsystem.
• 🐣 You can fetch data from an API and render it into the DOM using /api-calls, /handlers and async/await syntax.
• 🐣 You can write unit tests for functions that return promises using async/await syntax.

[Haneefa-Shaik]

Week 1

I Need Help With:

• For me, callback is simpler in understanding than promise. I am really struggling in understanding the difference. I have gone through some youtube videos. Really got confused about creating a promise, consuming promise etc;,

What went well?

• Understanding Js Event loops. setInterval, setTimeOut and clearInterval is quiet clear now.

• I tried a stopwatch using setInterval and clearInterval. Stopwatch I did start, stop and reset buttons and now I am working on the lap button. And after that will separate the concerns.

What went less well?

• As I said before, the promise topic is confusing.

Sunday Prep Work

• on completing the exercises now.

[danielhalasz]

• For me, callback is simpler in understanding than promise.

try reading this explanation about it: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises In a real world scenario, you can use setTimeout to execute something after a certain amount of time. By using promises, you can determine what should run after an operation is completed or has failed by executing callbacks (.then and .catch). Usually you would add many .then callbacks, chaining them together.

[danielhalasz]

• As I said before, the promise topic is confusing.

yes it is and therefore we will cover it on Sunday as well

[Haneefa-Shaik]

Week 2

I Need Help With:

• Little bit confused while reading async and await concepts. Trying to go through more videos to understand better.

What went well?

• Understanding promises. Now it is understandable creating promises after doing the exercises. Last sunday class was really helpful.

• Fetching data is very interesting and really helpful in doing the task.

• Kindly find my completion of task below. User-API

What went less well?

• while doing the task, a little less focused on reading and exploring more about the topics.

Sunday Prep Work

• on completing the exercises and preparation for next week