Learn browser requests, response handling, JSON exchange, and failure states, then test the concepts with runnable JavaScript and a focused quiz.
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Learn XMLHttpRequest, Fetch API workflows, JSON responses, request states, and error handling in sequence.
Use the JavaScript compiler to experiment with promises, response parsing, and request-handling code.
Check request methods, response formats, callbacks, promises, and browser security basics.
Review the language features that AJAX code relies on, including promises, async functions, and objects.
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