February 2019
Beginner to intermediate
284 pages
6h 20m
English
Content preview from Learn Chart.js
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Scriptable properties
Tooltips have three properties that receive functions. One allows you to replace the Canvas-generated tooltips with your own custom HTML tooltips. The other two allow sorting of tooltip items (when several items appear in a single tooltip) and filtering. These properties are listed as follows:
|
Object |
Parameters |
Description |
|
custom |
(tooltipModel) |
Used to generate custom HTML tooltips. See the Custom HTML tooltips section on HTML tooltips in this chapter. |
|
filter |
(item, data); array of datasets in data.datasets; array of labels in data.labels; item.x and item.y contain coordinates of the value point, item.xLabel and item.yLabel the labels in each axis, item.index is the index of the item in the dataset, ... |
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.