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The JavaScript JSON Cookbook

You're reading from   The JavaScript JSON Cookbook Over 80 recipes to make the most of JSON in your desktop, server, web, and mobile applications

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Product type Paperback
Published in Jun 2015
Publisher
ISBN-13 9781785286902
Length 192 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (12) Chapters Close

Preface 1. Reading and Writing JSON on the Client FREE CHAPTER 2. Reading and Writing JSON on the Server 3. Using JSON in Simple AJAX Applications 4. Using JSON in AJAX Applications with jQuery and AngularJS 5. Using JSON with MongoDB 6. Using JSON with CouchDB 7. Using JSON in a Type-safe Manner 8. Using JSON for Binary Data Transfer 9. Querying JSON with JSONPath and LINQ 10. JSON on Mobile Platforms Index

Parsing the returned JSON using jQuery

Finally, it's time to see how to get the returned JSON from the server and use it. You'll do this by registering an event handler on $.ajax to receive the resulting JavaScript object, which jQuery helpfully deserializes from JSON for you.

How to do it...

To get the result from the AJAX request, we need to add an event handler to the jQuery XMLHttpRequest object's done event, as follows:

function doAjax() {
  $('#debug').html("loaded... executing.");
 
  var request = { 
    call: "kf6gpe-7"
  };

  $.ajax({
    type: "POST",
    url: "/",
    data: JSON.stringify(request),
    dataType:"json",
  })
  .fail(function() {
    $('#debug').html( $('#debug').html() + "<br/>failed");
  })
  .always(function() {
    $('#debug').html( $('#debug').html() + "<br/>complete");
  })
  .done(function(result) {
    $(&apos...
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