Practical course: JavaScript Promises and async / await
Practical course: JavaScript Promises and async / await
Duration: 1h 16m | .MP4 1280x720, 30 fps(r) | AAC, 44100 Hz, 2ch | 1.1 GB
Genre: eLearning | Language: English
Duration: 1h 16m | .MP4 1280x720, 30 fps(r) | AAC, 44100 Hz, 2ch | 1.1 GB
Genre: eLearning | Language: English
Master the art of asynchronous code in this very practical course - Promises, async/await, with examples and quizes!
What you'll learn
Asynchronous programming
Asynchronous JavaScript
Promises
Async / Await
Try and Catch
Error handling
Callback functions
API requests
Requirements
Basic Javascript knowledge
Description
Welcome to my Udemy course on Asynhcronous JavaScript!
On this very practical course we will focus on results.
How to request data from a server
How to manipulate these data
When to request data in parallel
How to request data which depends on a previous response
How to handle errors properly
Use the async/await syntax
And finally, armed with all these tools, we'll build a weather widget which fetches real data and shows the forecast for the week based on your location.
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The course is divided in five big sections:
Callback Functions - We will learn what a callback function is and when it is used. We will also explain the concept of Immediately Invoked Function Expressions.
Promises - What is a Promise, how does JavaScript wait for its response…
Error Handling - Promises can fail, and for this reason we must know how to catch possible errors and handle them properly.
Promise Object and parallel requests - We can speed up our request 40% or more by performing certain requests in parallel. We will wait until we have received both "responses" before continuing with our code.
Promise Chaining - Handle a complex chain of parallel and series requests in one single object - for better readability and code practices.
All of these major points we will learn both using the Promise syntax ( axios.get(…).then(response)…) and the async/await syntax (const response = await axios.get(…))
And finally
We will build a Weather Widget using all the knowledge from this course.
Who this course is for
JavaScript developers wanting to build asynchronous aplications
JavaScript enthusiasts who want to learn Promises and async-await
More Info