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[data grid] Use readonly array result for getTreeDataPath #11743

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Aug 22, 2024
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2 changes: 1 addition & 1 deletion packages/x-data-grid-pro/src/models/dataGridProProps.ts
Original file line number Diff line number Diff line change
Expand Up @@ -153,7 +153,7 @@ interface DataGridProRegularProps<R extends GridValidRowModel> {
* @param {R} row The row from which we want the path.
* @returns {string[]} The path to the row.
*/
getTreeDataPath?: (row: R) => string[];
getTreeDataPath?: (row: R) => readonly string[];
}

export interface DataGridProPropsWithoutDefaultValue<R extends GridValidRowModel = any>
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Original file line number Diff line number Diff line change
Expand Up @@ -214,7 +214,7 @@ describe('<DataGridPro /> - Tree data', () => {
]);
setProps({
getTreeDataPath: (row) => [...row.name.split('.').reverse()],
} as DataGridProProps);
} as Pick<DataGridProProps, 'getTreeDataPath'>);
expect(getColumnValues(1)).to.deep.equal([
'A',
'A.A',
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