docs(legend): update default onClick example for v4 (fixes #12144) #12148
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LeeLenaleee
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Nov 16, 2025
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| :::tip Updated | ||
| Starting from Chart.js v4, use `toggleDataVisibility()` and `update()` instead of the old `show()` / `hide()` methods. | ||
| ::: |
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This can be left out since it is in the V4 docs and is something for the migration guide.
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| const index = legendItem.datasetIndex; | ||
| const ci = legend.chart; | ||
| if (ci.isDatasetVisible(index)) { | ||
| ci.hide(index); | ||
| legendItem.hidden = true; | ||
| } else { | ||
| ci.show(index); | ||
| legendItem.hidden = false; | ||
| } |
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This is the code that is currently in the source file:
Chart.js/src/plugins/plugin.legend.js
Line 645 in 2898a6d
So this change is not correct.
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The default legend onClick example used outdated methods (
show/hide)which caused a TypeError in Chart.js v4.
Updated to use
toggleDataVisibility()andupdate()instead.Fixes #12144.