April 2015
Intermediate to advanced
278 pages
5h 38m
English
Content preview from Data Visualization with D3 and AngularJSBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Binding data to DOM elements
Data binding techniques are very powerful in D3.js because they enable us to generate graphical content based on data. In general, with the data-driven approach, we can declare the graphical elements to match the data instead of looping through the data and drawing the elements one by one.
selection.data(values[, key])
D3-Selections provide the .data([values[, key]]) method to bind an array of arbitrary data to a Selection. It will return a new Selection that stores the bound data internally and binds every element of the data array to an element of the Selection.
The first values argument is an array of values or a function that returns an array of values. With the second optional key argument, we can specify a function ...
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