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What is the purpose of XMLHttpRequest?

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What is the purpose of XMLHttpRequest?

(a) Multiple loading

(b) Load content by loading new document

(c) Load content without loading new document

(d) Repetitive loading

I got this question in exam.

Question is from HTML APIs in chapter Caching, Debugging and Animation of JavaScript

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Right option is (c) Load content without loading new document

To elaborate: The XMLHttpRequest object can be used to request data from a web server. XMLHttpRequest makes it possible to load additional content from the Web without loading a new document, a core component of AJAX.

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