JavaScript how to retrieve data from a web service URL using XMLHttpRequest?

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#javascript #xmlhttprequest #json
In this tutorial i explain why we use web services. Why they needed and how do we fetch data from a web service URL using XMLHttpRequest?

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i'm new to web apps and i'm trying to understand how this works from the same origin on any website? it would mean a lot if someone could explain or give me hints on what to search for to find the answer.

jasminetr
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I didn't even know that its was possible

PauloSantos-ycfx
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Which backend language used for it ?
It's node js ??

ayeshask