import React from 'react'import ReactDOM from 'react-dom/client'import './index.css'import { useReactTable, makeStateUpdater, getSortedRowModel, getPaginationRowModel, getFilteredRowModel, getCoreRowModel, flexRender, TableFeature, Table, RowData, OnChangeFn, ColumnDef, Column, Updater, functionalUpdate,} from '@tanstack/react-table'import { makeData, Person } from './makeData'// TypeScript setup for our new feature with all of the same type-safety as stock TanStack Table features// define types for our new feature's custom stateexport type DensityState = 'sm' | 'md' | 'lg'export interface DensityTableState { density: DensityState}// define types for our new feature's table optionsexport interface DensityOptions { enableDensity?: boolean onDensityChange?: OnChangeFn<DensityState>}// Define types for our new feature's table APIsexport interface DensityInstance { setDensity: (updater: Updater<DensityState>) => void toggleDensity: (value?: DensityState) => void}// Use declaration merging to add our new feature APIs and state types to TanStack Table's existing types.declare module '@tanstack/react-table' { //merge our new feature's state with the existing table state interface TableState extends DensityTableState {} //merge our new feature's options with the existing table options interface TableOptionsResolved< TData extends RowData, > extends DensityOptions {} //merge our new feature's instance APIs with the existing table instance APIs interface Table<TData extends RowData> extends DensityInstance {} // if you need to add cell instance APIs... // interface Cell<TData extends RowData, TValue> extends DensityCell // if you need to add row instance APIs... // interface Row<TData extends RowData> extends DensityRow // if you need to add column instance APIs... // interface Column<TData extends RowData, TValue> extends DensityColumn // if you need to add header instance APIs... // interface Header<TData extends RowData, TValue> extends DensityHeader // Note: declaration merging on `ColumnDef` is not possible because it is a type, not an interface. // But you can still use declaration merging on `ColumnDef.meta`}// end of TS setup!// Here is all of the actual javascript code for our new featureexport const DensityFeature: TableFeature<any> = { // define the new feature's initial state getInitialState: (state): DensityTableState => { return { density: 'md', ...state, } }, // define the new feature's default options getDefaultOptions: <TData extends RowData>( table: Table<TData>, ): DensityOptions => { return { enableDensity: true, onDensityChange: makeStateUpdater('density', table), } as DensityOptions }, // if you need to add a default column definition... // getDefaultColumnDef: <TData extends RowData>(): Partial<ColumnDef<TData>> => { // return { meta: {} } //use meta instead of directly adding to the columnDef to avoid typescript stuff that's hard to workaround // }, // define the new feature's table instance methods createTable: <TData extends RowData>(table: Table<TData>): void => { table.setDensity = (updater) => { const safeUpdater: Updater<DensityState> = (old) => { let newState = functionalUpdate(updater, old) return newState } return table.options.onDensityChange?.(safeUpdater) } table.toggleDensity = (value) => { table.setDensity((old) => { if (value) return value return old === 'lg' ? 'md' : old === 'md' ? 'sm' : 'lg' //cycle through the 3 options }) } }, // if you need to add row instance APIs... // createRow: <TData extends RowData>(row, table): void => {}, // if you need to add cell instance APIs... // createCell: <TData extends RowData>(cell, column, row, table): void => {}, // if you need to add column instance APIs... // createColumn: <TData extends RowData>(column, table): void => {}, // if you need to add header instance APIs... // createHeader: <TData extends RowData>(header, table): void => {},}//end of custom feature code//app codefunction App() { const columns = React.useMemo<ColumnDef<Person>[]>( () => [ { accessorKey: 'firstName', cell: (info) => info.getValue(), footer: (props) => props.column.id, }, { accessorFn: (row) => row.lastName, id: 'lastName', cell: (info) => info.getValue(), header: () => <span>Last Name</span>, footer: (props) => props.column.id, }, { accessorKey: 'age', header: () => 'Age', footer: (props) => props.column.id, }, { accessorKey: 'visits', header: () => <span>Visits</span>, footer: (props) => props.column.id, }, { accessorKey: 'status', header: 'Status', footer: (props) => props.column.id, }, { accessorKey: 'progress', header: 'Profile Progress', footer: (props) => props.column.id, }, ], [], ) const [data, _setData] = React.useState(() => makeData(1000)) const [density, setDensity] = React.useState<DensityState>('md') const table = useReactTable({ _features: [DensityFeature], //pass our custom feature to the table to be instantiated upon creation columns, data, debugTable: true, getCoreRowModel: getCoreRowModel(), getSortedRowModel: getSortedRowModel(), getFilteredRowModel: getFilteredRowModel(), getPaginationRowModel: getPaginationRowModel(), state: { density, //passing the density state to the table, TS is still happy :) }, onDensityChange: setDensity, //using the new onDensityChange option, TS is still happy :) }) return ( <div className="p-2"> <div className="h-2" /> <button onClick={() => table.toggleDensity()} className="border rounded p-1 bg-blue-500 text-white mb-2 w-64" > Toggle Density </button> <table> <thead> {table.getHeaderGroups().map((headerGroup) => ( <tr key={headerGroup.id}> {headerGroup.headers.map((header) => { return ( <th key={header.id} colSpan={header.colSpan} style={{ //using our new feature padding: density === 'sm' ? '4px' : density === 'md' ? '8px' : '16px', transition: 'padding 0.2s', }} > <div {...{ className: header.column.getCanSort() ? 'cursor-pointer select-none' : '', onClick: header.column.getToggleSortingHandler(), }} > {flexRender( header.column.columnDef.header, header.getContext(), )} {{ asc: ' 🔼', desc: ' 🔽', }[header.column.getIsSorted() as string] ?? null} </div> {header.column.getCanFilter() ? ( <div> <Filter column={header.column} table={table} /> </div> ) : null} </th> ) })} </tr> ))} </thead> <tbody> {table.getRowModel().rows.map((row) => { return ( <tr key={row.id}> {row.getVisibleCells().map((cell) => { return ( <td key={cell.id} style={{ //using our new feature padding: density === 'sm' ? '4px' : density === 'md' ? '8px' : '16px', transition: 'padding 0.2s', }} > {flexRender( cell.column.columnDef.cell, cell.getContext(), )} </td> ) })} </tr> ) })} </tbody> </table> <div className="h-2" /> <div className="flex items-center gap-2"> <button className="border rounded p-1" onClick={() => table.firstPage()} disabled={!table.getCanPreviousPage()} > {'<<'} </button> <button className="border rounded p-1" onClick={() => table.previousPage()} disabled={!table.getCanPreviousPage()} > {'<'} </button> <button className="border rounded p-1" onClick={() => table.nextPage()} disabled={!table.getCanNextPage()} > {'>'} </button> <button className="border rounded p-1" onClick={() => table.lastPage()} disabled={!table.getCanNextPage()} > {'>>'} </button> <span className="flex items-center gap-1"> <div>Page</div> <strong> {table.getState().pagination.pageIndex + 1} of{' '} {table.getPageCount().toLocaleString()} </strong> </span> <span className="flex items-center gap-1"> | Go to page: <input type="number" defaultValue={table.getState().pagination.pageIndex + 1} onChange={(e) => { const page = e.target.value ? Number(e.target.value) - 1 : 0 table.setPageIndex(page) }} className="border p-1 rounded w-16" /> </span> <select value={table.getState().pagination.pageSize} onChange={(e) => { table.setPageSize(Number(e.target.value)) }} > {[10, 20, 30, 40, 50].map((pageSize) => ( <option key={pageSize} value={pageSize}> Show {pageSize} </option> ))} </select> </div> <div> Showing {table.getRowModel().rows.length.toLocaleString()} of{' '} {table.getRowCount().toLocaleString()} Rows </div> <pre>{JSON.stringify(table.getState().pagination, null, 2)}</pre> </div> )}function Filter({ column, table,}: { column: Column<any, any> table: Table<any>}) { const firstValue = table .getPreFilteredRowModel() .flatRows[0]?.getValue(column.id) const columnFilterValue = column.getFilterValue() return typeof firstValue === 'number' ? ( <div className="flex space-x-2"> <input type="number" value={(columnFilterValue as [number, number])?.[0] ?? ''} onChange={(e) => column.setFilterValue((old: [number, number]) => [ e.target.value, old?.[1], ]) } placeholder={`Min`} className="w-24 border shadow rounded" /> <input type="number" value={(columnFilterValue as [number, number])?.[1] ?? ''} onChange={(e) => column.setFilterValue((old: [number, number]) => [ old?.[0], e.target.value, ]) } placeholder={`Max`} className="w-24 border shadow rounded" /> </div> ) : ( <input type="text" value={(columnFilterValue ?? '') as string} onChange={(e) => column.setFilterValue(e.target.value)} placeholder={`Search...`} className="w-36 border shadow rounded" /> )}const rootElement = document.getElementById('root')if (!rootElement) throw new Error('Failed to find the root element')ReactDOM.createRoot(rootElement).render( <React.StrictMode> <App /> </React.StrictMode>,)
import React from 'react'import ReactDOM from 'react-dom/client'import './index.css'import { useReactTable, makeStateUpdater, getSortedRowModel, getPaginationRowModel, getFilteredRowModel, getCoreRowModel, flexRender, TableFeature, Table, RowData, OnChangeFn, ColumnDef, Column, Updater, functionalUpdate,} from '@tanstack/react-table'import { makeData, Person } from './makeData'// TypeScript setup for our new feature with all of the same type-safety as stock TanStack Table features// define types for our new feature's custom stateexport type DensityState = 'sm' | 'md' | 'lg'export interface DensityTableState { density: DensityState}// define types for our new feature's table optionsexport interface DensityOptions { enableDensity?: boolean onDensityChange?: OnChangeFn<DensityState>}// Define types for our new feature's table APIsexport interface DensityInstance { setDensity: (updater: Updater<DensityState>) => void toggleDensity: (value?: DensityState) => void}// Use declaration merging to add our new feature APIs and state types to TanStack Table's existing types.declare module '@tanstack/react-table' { //merge our new feature's state with the existing table state interface TableState extends DensityTableState {} //merge our new feature's options with the existing table options interface TableOptionsResolved< TData extends RowData, > extends DensityOptions {} //merge our new feature's instance APIs with the existing table instance APIs interface Table<TData extends RowData> extends DensityInstance {} // if you need to add cell instance APIs... // interface Cell<TData extends RowData, TValue> extends DensityCell // if you need to add row instance APIs... // interface Row<TData extends RowData> extends DensityRow // if you need to add column instance APIs... // interface Column<TData extends RowData, TValue> extends DensityColumn // if you need to add header instance APIs... // interface Header<TData extends RowData, TValue> extends DensityHeader // Note: declaration merging on `ColumnDef` is not possible because it is a type, not an interface. // But you can still use declaration merging on `ColumnDef.meta`}// end of TS setup!// Here is all of the actual javascript code for our new featureexport const DensityFeature: TableFeature<any> = { // define the new feature's initial state getInitialState: (state): DensityTableState => { return { density: 'md', ...state, } }, // define the new feature's default options getDefaultOptions: <TData extends RowData>( table: Table<TData>, ): DensityOptions => { return { enableDensity: true, onDensityChange: makeStateUpdater('density', table), } as DensityOptions }, // if you need to add a default column definition... // getDefaultColumnDef: <TData extends RowData>(): Partial<ColumnDef<TData>> => { // return { meta: {} } //use meta instead of directly adding to the columnDef to avoid typescript stuff that's hard to workaround // }, // define the new feature's table instance methods createTable: <TData extends RowData>(table: Table<TData>): void => { table.setDensity = (updater) => { const safeUpdater: Updater<DensityState> = (old) => { let newState = functionalUpdate(updater, old) return newState } return table.options.onDensityChange?.(safeUpdater) } table.toggleDensity = (value) => { table.setDensity((old) => { if (value) return value return old === 'lg' ? 'md' : old === 'md' ? 'sm' : 'lg' //cycle through the 3 options }) } }, // if you need to add row instance APIs... // createRow: <TData extends RowData>(row, table): void => {}, // if you need to add cell instance APIs... // createCell: <TData extends RowData>(cell, column, row, table): void => {}, // if you need to add column instance APIs... // createColumn: <TData extends RowData>(column, table): void => {}, // if you need to add header instance APIs... // createHeader: <TData extends RowData>(header, table): void => {},}//end of custom feature code//app codefunction App() { const columns = React.useMemo<ColumnDef<Person>[]>( () => [ { accessorKey: 'firstName', cell: (info) => info.getValue(), footer: (props) => props.column.id, }, { accessorFn: (row) => row.lastName, id: 'lastName', cell: (info) => info.getValue(), header: () => <span>Last Name</span>, footer: (props) => props.column.id, }, { accessorKey: 'age', header: () => 'Age', footer: (props) => props.column.id, }, { accessorKey: 'visits', header: () => <span>Visits</span>, footer: (props) => props.column.id, }, { accessorKey: 'status', header: 'Status', footer: (props) => props.column.id, }, { accessorKey: 'progress', header: 'Profile Progress', footer: (props) => props.column.id, }, ], [], ) const [data, _setData] = React.useState(() => makeData(1000)) const [density, setDensity] = React.useState<DensityState>('md') const table = useReactTable({ _features: [DensityFeature], //pass our custom feature to the table to be instantiated upon creation columns, data, debugTable: true, getCoreRowModel: getCoreRowModel(), getSortedRowModel: getSortedRowModel(), getFilteredRowModel: getFilteredRowModel(), getPaginationRowModel: getPaginationRowModel(), state: { density, //passing the density state to the table, TS is still happy :) }, onDensityChange: setDensity, //using the new onDensityChange option, TS is still happy :) }) return ( <div className="p-2"> <div className="h-2" /> <button onClick={() => table.toggleDensity()} className="border rounded p-1 bg-blue-500 text-white mb-2 w-64" > Toggle Density </button> <table> <thead> {table.getHeaderGroups().map((headerGroup) => ( <tr key={headerGroup.id}> {headerGroup.headers.map((header) => { return ( <th key={header.id} colSpan={header.colSpan} style={{ //using our new feature padding: density === 'sm' ? '4px' : density === 'md' ? '8px' : '16px', transition: 'padding 0.2s', }} > <div {...{ className: header.column.getCanSort() ? 'cursor-pointer select-none' : '', onClick: header.column.getToggleSortingHandler(), }} > {flexRender( header.column.columnDef.header, header.getContext(), )} {{ asc: ' 🔼', desc: ' 🔽', }[header.column.getIsSorted() as string] ?? null} </div> {header.column.getCanFilter() ? ( <div> <Filter column={header.column} table={table} /> </div> ) : null} </th> ) })} </tr> ))} </thead> <tbody> {table.getRowModel().rows.map((row) => { return ( <tr key={row.id}> {row.getVisibleCells().map((cell) => { return ( <td key={cell.id} style={{ //using our new feature padding: density === 'sm' ? '4px' : density === 'md' ? '8px' : '16px', transition: 'padding 0.2s', }} > {flexRender( cell.column.columnDef.cell, cell.getContext(), )} </td> ) })} </tr> ) })} </tbody> </table> <div className="h-2" /> <div className="flex items-center gap-2"> <button className="border rounded p-1" onClick={() => table.firstPage()} disabled={!table.getCanPreviousPage()} > {'<<'} </button> <button className="border rounded p-1" onClick={() => table.previousPage()} disabled={!table.getCanPreviousPage()} > {'<'} </button> <button className="border rounded p-1" onClick={() => table.nextPage()} disabled={!table.getCanNextPage()} > {'>'} </button> <button className="border rounded p-1" onClick={() => table.lastPage()} disabled={!table.getCanNextPage()} > {'>>'} </button> <span className="flex items-center gap-1"> <div>Page</div> <strong> {table.getState().pagination.pageIndex + 1} of{' '} {table.getPageCount().toLocaleString()} </strong> </span> <span className="flex items-center gap-1"> | Go to page: <input type="number" defaultValue={table.getState().pagination.pageIndex + 1} onChange={(e) => { const page = e.target.value ? Number(e.target.value) - 1 : 0 table.setPageIndex(page) }} className="border p-1 rounded w-16" /> </span> <select value={table.getState().pagination.pageSize} onChange={(e) => { table.setPageSize(Number(e.target.value)) }} > {[10, 20, 30, 40, 50].map((pageSize) => ( <option key={pageSize} value={pageSize}> Show {pageSize} </option> ))} </select> </div> <div> Showing {table.getRowModel().rows.length.toLocaleString()} of{' '} {table.getRowCount().toLocaleString()} Rows </div> <pre>{JSON.stringify(table.getState().pagination, null, 2)}</pre> </div> )}function Filter({ column, table,}: { column: Column<any, any> table: Table<any>}) { const firstValue = table .getPreFilteredRowModel() .flatRows[0]?.getValue(column.id) const columnFilterValue = column.getFilterValue() return typeof firstValue === 'number' ? ( <div className="flex space-x-2"> <input type="number" value={(columnFilterValue as [number, number])?.[0] ?? ''} onChange={(e) => column.setFilterValue((old: [number, number]) => [ e.target.value, old?.[1], ]) } placeholder={`Min`} className="w-24 border shadow rounded" /> <input type="number" value={(columnFilterValue as [number, number])?.[1] ?? ''} onChange={(e) => column.setFilterValue((old: [number, number]) => [ old?.[0], e.target.value, ]) } placeholder={`Max`} className="w-24 border shadow rounded" /> </div> ) : ( <input type="text" value={(columnFilterValue ?? '') as string} onChange={(e) => column.setFilterValue(e.target.value)} placeholder={`Search...`} className="w-36 border shadow rounded" /> )}const rootElement = document.getElementById('root')if (!rootElement) throw new Error('Failed to find the root element')ReactDOM.createRoot(rootElement).render( <React.StrictMode> <App /> </React.StrictMode>,)
