JQuery AJAX Capabilities Training Videos for Beginner

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JQuery AJAX Capabilities Training Videos for
Beginner by
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Highlights

• Global Ajax Event handlers
• Shorthand functions Helper functions
• AJAX SETUP Method
• AJAX Get and Set Methods

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Global Ajax Event handlers

• Ajax methods register handlers to be called for
  specific events.
• Initialization or completion takes place for
  every Ajax request.
• Ajax methods are .ajaxComplete(), .ajaxError(),
  .ajaxSend(), .ajaxStart(), .ajaxStop(),
  .ajaxSuccess().
• .ajaxComplete() method register a handler to be
  called when Ajax requests complete.
• .ajaxError() register a handler to be called when
  Ajax requests complete with an error.

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Global Ajax Event handlers

• .ajaxSend() method attaches a function to be
  executed before an Ajax request is sent.
• .ajaxStart() method register handlers to be
  called when the first Ajax request begins.
• .ajaxStop() method register a handler to be
  called when all Ajax requests have completed.
• .ajaxSuccess() method attaches a function to be
  executed whenever an Ajax request completes
  successfully.

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Shorthand methods Helper functions

• Shorthand methods executes regular types of Ajax
  requests.
• Shorthand methods are five types, they are
  jQuery.get(), jQuery.getJSON(), .load()
  jQuery.getScript(), jQuery.post().
• jQuery.get() method loads data from the web
  servers.
• jQuery.getJSON() loads JSON encoded data from the
  web servers.
• .load() method loads data from the web servers.
• jQuery.post() method loads data from the web
  servers.

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Shorthand methods Helper functions

• jQuery.getScript() method loads JavaScript file
  from the server and executes it.
• Helper functions handle common idioms encounter
  while performing Ajax tasks.
• Helper functions are three types, they are
• .serializeArray() function encodes form elements
  as an array of names and values.
• .serialize() function encodes form elements as
  strings for submission.
• jQuery.param() function creates serialized
  representation of an array, plain object, or a
  jQuery object suitable for use in a URL query
  string or Ajax request.

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AJAX SETUP Method

• Sets default values for future AJAX requests.
• Syntax .ajaxSetup(namevalue, namevalue, ...
  )
• Plain object is the option for Ajax setup method
• Plain object stands for set of key or value
  pairs which configure the default Ajax request.
• Async, cache, contentType, context, data,
  dataType, global, password, processData are some
  possible names of Ajax setup method

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AJAX Get and Set Methods

• Uses to request data from the server.
• Get() method requests and retrieve data from a
  specified resource.
• Syntax .get( URL, callback)
• Post() method submits data to the web servers.
• Syntax .post( URL, data, callback)

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