Who is responsible for ajax?

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I want to know as a Backend Developer, Is it necessary to learn Ajax to send requests to the server asynchronously or it may be handled by a frontend developer

What I have tried:

I am working with php and MySQL and want to make errors at runtime where users enter their inputs not waiting for response from the server or it is the responsibility of frontend developer

Posted 2-Oct-21 0:01am

Tamer_Shawqi

Updated 8-Oct-21 3:19am

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RickZeeland · Answer 1 · 2021-10-02T02:37:00

That is not very clear, but it could be the W3C as it says on Wikipedia:

Quote:
On 5 April 2006, the World Wide Web Consortium (W3C) released the first draft specification for the XMLHttpRequest object in an attempt to create an official Web standard.[11] The latest draft of the XMLHttpRequest object was published on 6 October 2016,[12] and the XMLHttpRequest specification is now a living standard

Ajax (programming) - Wikipedia[^]

It seems to me that simple validation can be done by the frontend developer in Javascript, e.g. checking for empty fields.
For more complex validations e.g. against a database you could use Ajax or a REST API and you would need some backend development too.
Also see: php-frameworks-for-building-a-restful-api[^]