romgrk

'use client';

import * as React from 'react';

import { Flex } from '@joy-ui/react';
import { useRenderElement } from '@base-ui-components/react';

import './page.css';

import './perf-test.css'

romgrk

diff --color -bur mui-master/Accordion/AccordionContext.js mui-new/Accordion/AccordionContext.js
--- mui-master/Accordion/AccordionContext.js	2025-05-15 04:27:00.978150724 -0400
+++ mui-new/Accordion/AccordionContext.js	2025-05-15 04:23:53.077302969 -0400
@@ -12,7 +12,5 @@
  * @type {React.Context<{} | {expanded: boolean, disabled: boolean, toggle: () => void}>}
  */
 const AccordionContext = /*#__PURE__*/React.createContext({});
-if (process.env.NODE_ENV !== 'production') {
-  AccordionContext.displayName = 'AccordionContext';
-}

romgrk

/*
 * BorrowMap: (possibly) zero-copy mutable data structure in a react context
 * =========================================================================
 *
 * The idea behind this concept is that we can have a mutable container in a
 * React-linked store but ONLY IF we never share a reference to the mutable
 * container itself. All the reads must be contained inside selectors. As long
 * as no one has a second reference to the mutable container, then we are sure
 * that no one is able to read/write it without us knowing.
 *

romgrk

$ dig +trace lolawho.com                                                                                                                                   refactor-agnostic-button-props 

; <<>> DiG 9.20.4 <<>> +trace lolawho.com
;; global options: +cmd
.			241826	IN	NS	a.root-servers.net.
.			241826	IN	NS	b.root-servers.net.
.			241826	IN	NS	c.root-servers.net.
.			241826	IN	NS	d.root-servers.net.
.			241826	IN	NS	e.root-servers.net.
.			241826	IN	NS	f.root-servers.net.

romgrk

const focusedVirtualCellSelector = createSelectorMemoizedV8(
  gridRenderContextSelector,
  gridFocusCellSelector,

  currentRowsSelector,
  visibleColumnsSelector,

  (currentRenderContext, focusedCell, currentRows, visibleColumns) => {

    if (!focusedCell) {

romgrk

function wrapSx(Component) {

  const newComponent = (props) => {
    const { sx, ...rest } = props
    rest.className = useSx(sx)
    return Component(rest)
  }
  newComponent.displayName = Component.displayName ?? Component.name

  return newComponent

romgrk

import {
  Box,
  Paper,
  Container,
} from '@mui/material'
import sx from '@mui/system/styleFunctionSx'

function Row() {
  return (
    <div>

romgrk

const WAIT_DURATION = 2

function Slow() {
  const start = Date.now()
  while ((Date.now() - start) < WAIT_DURATION) {}
  return (
    <span>slow</span>
  )
}

romgrk

4375 Noah Lemen (2%)            [META]
7122 Jack Pope (3%)             [META]
14077 Jan Kassens (6%)          [META]
15291 Sebastian Silbermann (7%) [VERCEL]
24125 Rick Hanlon (10%)         [META]
25050 Ruslan Lesiutin (11%)     [META]
25240 Andrew Clark (11%)        [VERCEL]
41302 Josh Story (18%)          [VERCEL]
58361 Sebastian Markbåge (25%)  [VERCEL]

romgrk

packages/x-data-grid-pro/src/hooks/features/columnReorder/useGridColumnReorder.tsx:          (theme.direction === 'rtl'
packages/x-data-grid-pro/src/hooks/features/columnReorder/useGridColumnReorder.tsx:          (theme.direction === 'rtl'
packages/x-data-grid-pro/src/hooks/features/columnReorder/useGridColumnReorder.tsx:    [apiRef, logger, theme.direction],
packages/x-data-grid-pro/src/components/GridColumnMenuPinningItem.tsx:  if (theme.direction === 'rtl') {
packages/x-data-grid-premium/src/components/GridGroupingColumnFooterCell.tsx:      `calc(var(--DataGrid-cellOffsetMultiplier) * ${theme.spacing(props.rowNode.depth)})`;
packages/x-data-grid-pro/src/components/GridDetailPanel.tsx:  backgroundColor: (theme.vars || theme).palette.background.default,
packages/x-data-grid-premium/src/components/GridAggregationHeader.tsx:    fontSize: theme.typography.caption.fontSize,
packages/x-data-grid-premium/src/components/GridAggregationHeader.tsx:    lineHeight: theme.typography.caption.fontSize,
packages/x-data-gri