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Improves chart update performance for a large number of datasets #11836

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Improves chart update performance for a large number of datasets #11836

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1e6cdd8
Improves chart update performance for a large number of datasets
Jul 17, 2024
1dbef44
Fixes some broken unit tests for dataset removal and reordering
Nov 14, 2024
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5 changes: 2 additions & 3 deletions src/core/core.controller.js
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Original file line number Diff line number Diff line change
Expand Up @@ -852,8 +852,7 @@ class Chart {
getDatasetMeta(datasetIndex) {
const dataset = this.data.datasets[datasetIndex];
const metasets = this._metasets;
let meta = metasets.filter(x => x && x._dataset === dataset).pop();

let meta = metasets[datasetIndex];
if (!meta) {
meta = {
type: null,
Expand All @@ -869,7 +868,7 @@ class Chart {
_parsed: [],
_sorted: false
};
metasets.push(meta);
metasets[datasetIndex] = meta;
}

return meta;
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