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JavaScript and JSON Essentials

You're reading from   JavaScript and JSON Essentials If you fancy a less verbose data format than CSV or XML, then JSON could be for you. This tutorial will teach you about using JSON with JavaScript for effective local storage or Internet transfers.

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Product type Paperback
Published in Oct 2013
Publisher Packt
ISBN-13 9781783286034
Length 120 pages
Edition 1st Edition
Languages
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Author (1):
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Sai S Sriparasa Sai S Sriparasa
Author Profile Icon Sai S Sriparasa
Sai S Sriparasa
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Toc

Accessing objects in JSON


Now that we understand how to make a script call to fetch an external JavaScript file, let us use the same technique to import a JSON feed. I have generated a test employee JSON data feed with 100 records. To traverse through any JSON feed, it is important to make a note of how the data is arranged. The keys in this data feed are basic employee information such as employee number, date of birth, first name, last name, gender, hire date, titles that they have held, and the dates during which they have held those titles. A few employees have held the same title throughout their tenure, while there are some employees who have held more than one title.

Note

This JSON file will be part of the code files for exercises.

As we are dealing with a complex JSON data feed, let us save the data feed to a file. In the data_json_feed.html file, we have imported the data.json file, which is in the same folder as the HTML file. It is noteworthy that the JSON feed has been assigned...

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