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AJAX technology—getting data without refreshing

• Chapter1 Chapter One
• 1-1 Course description
• 1-2 AJAX introduction and web application
• 1-3 Introduction to XML
• 1-4 Advantages and Disadvantages of AJAX
• 1-5 HTTP protocol request message and response text structure
• 1-6 Chrome network console to view communication messages
• 1-7 Installation and introduction of NodeJS
• 1-8 Introduction and basic use of express framework
• 1-9 AJAX case preparation
• 1-10 Basic operations of AJAX requests
• Chapter2 Chapter two
• 2-1 AJAX set request parameters
• 2-2 AJAX sends POST request
• 2-3 AJAX-POST set request body
• 2-4 AJAX sets request header information
• 2-5 Server responds to JSON data
• 2-6 nodemon automatic restart tool installation
• 2-7 AJAX-IE cache problem solved
• 2-8 AJAX request timeout and network exception handling
• 2-9 AJAX cancel request
• 2-10 AJAX request duplicate sending problem
• Chapter3 third chapter
• 3-1 jQuery sends AJAX request
• 3-2 jQuery common method to send AJAX request
• 3-3 Axios sends AJAX request
• 3-4 Axios function sends AJAX request
• 3-5 Send AJAX request using fetch function
• 3-6 Same origin policy
• 3-7 Implementation principle of jsonp
• 3-8 Native jsonp practice
• 3-9 jQuery sends jsonp request
• 3-10 Set CORS response header to achieve cross-domain