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You're reading from  Data Visualization with D3.js Cookbook

Product typeBook
Published inOct 2013
Reading LevelIntermediate
PublisherPackt
ISBN-139781782162162
Edition1st Edition
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Author (1)
Nick Zhu
Nick Zhu
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Nick Zhu

Nick Zhu is a professional programmer and data engineer with more than a decade experience in software development, big data, and machine learning. Currently, he is one of the founders and CTO of Yroo.com - meta search engine for online shopping. He is also the creator of dc.js—a popular multidimensional charting library built on D3.
Read more about Nick Zhu

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Manipulating the raw selection


Sometimes, though not very often, having access to D3 raw selection array might be beneficial in development whether it's for debugging purposes or for integrating with other JavaScript libraries which require access to raw DOM elements; in this recipe, we will show you ways to do that. We will also see some internal structure of a D3 selection object.

Getting ready

Open your local copy of the following file in your web browser:

https://github.com/NickQiZhu/d3-cookbook/blob/master/src/chapter2/raw-selection.html

How to do it...

Of course you can achieve this by using the nth-child selector or selection iterator function via each, but there are cases where these options are just too cumbersome and inconvenient. This is when you might find dealing with raw selection array as a more convenient approach. In this example, we will see how raw selection array can be accessed and leveraged.

<table class="table">
    <thead>
    <tr>
        <th>...
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Data Visualization with D3.js Cookbook
Published in: Oct 2013Publisher: PacktISBN-13: 9781782162162

Author (1)

author image
Nick Zhu

Nick Zhu is a professional programmer and data engineer with more than a decade experience in software development, big data, and machine learning. Currently, he is one of the founders and CTO of Yroo.com - meta search engine for online shopping. He is also the creator of dc.js—a popular multidimensional charting library built on D3.
Read more about Nick Zhu