The following topics are covered as part of this article with practicle examples.**

• Synchronous vs Asynchronous Programming
• What is Ajax & how Ajax works
• XMLHttpRequest
• CallbackHell
• Promise (promises in javascript)

https://youtu.be/sLdkp0DKCeU

Source code link:
https://github.com/codewelltech/Asynchronous-Javascript
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Countries API Urls:
Url : https://restcountries.eu/
Name endpoint : https://restcountries.eu/rest/v2/name/{name}
Code Endpoint : https://restcountries.eu/rest/v2/alpha/{code}
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#javascript #ajax #callbackfunction #callbackhell #promise