# Event Handler Instances: `{() => handler(arg)}` Pattern

Found 167 instances across the codebase.

---

## Workspaces / Shared Components

### `src/workspaces/components/MarkdownEditor.tsx`
- Line 48: `onClick={() => setShowPreview(false)}`
- Line 52: `onClick={() => setShowPreview(true)}`

### `src/workspaces/components/SearchInput.tsx`
- Line 49: `onClick={() => handleSearch('')}`

### `src/workspaces/components/ErrorDialogs/CustomError.tsx`
- Line 25: `onClick={() => onOpenChange(false)}`

### `src/workspaces/components/ErrorDialogs/ForbiddenDialog.tsx`
- Line 27: `onClick={() => onOpenChange(false)}`

### `src/workspaces/components/ErrorDialogs/UnauthorizedDialog.tsx`
- Line 29: `onClick={() => onOpenChange(false)}`

### `src/workspaces/components/ErrorDialogs/ServerError.tsx`
- Line 25: `onClick={() => onOpenChange(false)}`

### `src/workspaces/components/DataTable/PaginationBar.tsx`
- Line 83: `onClick={() => changePage(1)}`
- Line 93: `onClick={() => changePage(currentPage - 1)}`
- Line 103: `onClick={() => changePage(currentPage + 1)}`
- Line 113: `onClick={() => changePage(pageCount)}`

### `src/workspaces/components/DataTable/DataTable.tsx`
- Line 89: `onClick={() => sortBy(sortKey as Extract<keyof T, string> | undefined)}`

### `src/workspaces/components/ui/mode-toggle.tsx`
- Line 16: `onClick={() => setTheme(theme === 'light' ? 'dark' : 'light')}`

---

## Editor App

### `src/apps/editor/app/src/EditorV2/index.tsx`
- Line 73: `onCollapse={() => setLeftCollapsed(true)}`
- Line 74: `onExpand={() => setLeftCollapsed(false)}`
- Line 97: `onCollapse={() => setRightCollapsed(true)}`
- Line 98: `onExpand={() => setRightCollapsed(false)}`

### `src/apps/editor/app/src/EditorV2/ScreenshotDialog.tsx`
- Line 114: `onClick={() => setView('list')}`
- Line 131: `onClick={() => setView('editor')}`

### `src/apps/editor/app/src/EditorV2/Header/index.tsx`
- Line 110: `onClick={() => setDevice(d)}`
- Line 134: `onClick={() => setDevice(d)}`

### `src/apps/editor/app/src/EditorV2/Header/GlobalCodeMenu.tsx`
- Line 32: `onClick={() => openEditor('js')}`
- Line 33: `onClick={() => openEditor('css')}`

### `src/apps/editor/app/src/EditorV2/Header/ElementSelector.tsx`
- Line 59: `onClick={() => setIsOpen(false)}`

### `src/apps/editor/app/src/EditorV2/RightSidebar/ElementInfo.tsx`
- Line 23: `setTimeout(() => setCopiedHierarchical(false), 2000)`
- Line 31: `setTimeout(() => setCopiedClassBased(false), 2000)`

### `src/apps/editor/app/src/EditorV2/RightSidebar/Breadcrumb.tsx`
- Line 60: `onClick={() => selectMember(index)}`
- Line 100: `onClick={() => selectMember(index)}`

### `src/apps/editor/app/src/EditorV2/RightSidebar/fields/PropertyColor.tsx`
- Line 29: `return () => clearInterval(interval)`

### `src/apps/editor/app/src/EditorV2/LeftSidebar/HierarchyTab.tsx`
- Line 25: `onClick={() => onSelect(index)}`

### `src/apps/editor/app/src/EditorV2/LeftSidebar/ChangesTab.tsx`
- Line 46: `onMouseEnter={() => handleMouseEnter(change)}`
- Line 48: `onClick={() => selectByChange(change)}`

### `src/apps/editor/app/src/EditorV2/Preview/index.tsx`
- Line 118: `onClick={() => setInteractive(!interactive)}`
- Line 132: `onClick={() => setMoveAnywhere(!moveAnywhere)}`

### `src/apps/editor/app/src/Editor/CodeEditorWindow/index.tsx`
- Line 31: `onClick={() => setIsFullscreen(false)}`
- Line 33: `onClick={() => setIsFullscreen(true)}`

### `src/apps/editor/app/src/Editor/ContextMenu/index.tsx`
- Line 20: `onClick={() => setIsContextOpen(false)}`
- Line 26: `onClick={() => openEditor('html')}`

### `src/apps/editor/app/src/Editor/BottomToolbar/GlobalCode/index.tsx`
- Line 22: `onClick={() => openEditor('js')}`
- Line 27: `onClick={() => openEditor('css')}`

### `src/apps/editor/app/src/Editor/BottomToolbar/VariantSelector/index.tsx`
- Line 44: `onClick={() => setIsOpen(true)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/VariantSelector/CreateNewVariant.tsx`
- Line 23: `onClose={() => setIsOpen(false)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/QuerySelector/index.tsx`
- Line 49: `onClick={() => setIsOpen(false)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/DeviceSelector/index.tsx`
- Line 23: `onSelect={() => setDevice(device)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/MoveAnywhere/index.tsx`
- Line 12: `onClick={() => setMoveAnywhere((curr) => !curr)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/InteractivitySelector/index.tsx`
- Line 13: `onClick={() => setInteractive((curr) => !curr)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/Changes/ChangesList.tsx`
- Line 26: `onMouseEnter={() => selectByChange(change)}`
- Line 48: `onClick={() => removeChange(change)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/Screenshot/ScreenshotList.tsx`
- Line 38: `onMouseEnter={() => setHovered(screenshot.id)}`
- Line 39: `onMouseLeave={() => setHovered(null)}`
- Line 56: `onClick={() => setEditing(null)}`
- Line 64: `onClick={() => setEditing(screenshot.id)}`
- Line 68: `onClick={() => setWantsToDelete(screenshot.id)}`
- Line 75: `onConfirm={() => onDeleteConfirm(screenshot.id)}`
- Line 76: `onClose={() => setWantsToDelete(null)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/Screenshot/Controls.tsx`
- Line 87: `onClick={() => handleUpload(comment)}`

### `src/apps/editor/app/src/Editor/BottomToolbar/Screenshot/index.tsx`
- Line 38: `onClick={() => setView('list')}`
- Line 47: `onClick={() => setView('upload')}`

### `src/apps/editor/extension/src/Auth/SigninPage.tsx`
- Line 18: `setTimeout(() => navigate('/'), 100)`

### `src/apps/editor/extension/src/Screens/ExperimentList/ExperimentVariantList/SearchFilter.tsx`
- Line 22: `onClick={() => onSearchChange('')}`

---

## Dashboard App

### `src/apps/dashboard/hooks/use-toast.tsx`
- Line 143: `const dismiss = () => dispatch({ type: 'DISMISS_TOAST', toastId: id })`

### `src/apps/dashboard/Screens/AdminTools/TestExperiments/TestExperiments.tsx`
- Line 38: `onClick={() => setShowDuplicateModal(true)}`
- Line 48: `onClose={() => setShowDuplicateModal(false)}`

### `src/apps/dashboard/Screens/Dashboard/Monitor/TrendTable.tsx`
- Line 99: `onToggle={() => toggleRow(`trend-${exp.id}`)}`
- Line 114: `onClick={() => setCurrentPage(1)}`
- Line 120: `onClick={() => setCurrentPage((p) => Math.max(1, p - 1))}`
- Line 128: `onClick={() => setCurrentPage((p) => Math.min(totalPages, p + 1))}`
- Line 136: `onClick={() => setCurrentPage(totalPages)}`

### `src/apps/dashboard/Screens/Dashboard/Monitor/GroupedExperimentsTable.tsx`
- Line 75: `onToggle={() => toggleRow(`grouped-${exp.id}`)}`
- Line 91: `onClick={() => setCurrentPage(1)}`
- Line 97: `onClick={() => setCurrentPage((p) => Math.max(1, p - 1))}`
- Line 105: `onClick={() => setCurrentPage((p) => Math.min(totalPages, p + 1))}`
- Line 113: `onClick={() => setCurrentPage(totalPages)}`

### `src/apps/dashboard/Screens/Dashboard/Home/ExperimentsOverviewTableMobile.tsx`
- Line 23: `onClick={() => sort('id')}`
- Line 28: `onClick={() => sort('status')}`
- Line 34: `onClick={() => sort('sessions')}`

### `src/apps/dashboard/Screens/Dashboard/Home/ConfirmDialogs.tsx`
- Line 36: `onOpenChange={() => setDialogAction(null)}`

### `src/apps/dashboard/Screens/Dashboard/Home/RowActions.tsx`
- Line 31: `onClick={() => navigate(`/experiments/${id}`)}`
- Line 32: `onClick={() => setDialogAction('duplicate')}`
- Line 34: `onClick={() => setDialogAction('archive')}`
- Line 37: `onClick={() => setDialogAction('delete')}`

### `src/apps/dashboard/Screens/Dashboard/Clients/index.tsx`
- Line 76: `onClick={() => setIsCreating(true)}`
- Line 108: `onClick={() => setIsCreating(true)}`
- Line 119: `onClick={() => setOrganization(value as number)}`
- Line 146: `onClick={() => handleSaveEdit(item.id)}`
- Line 163: `onClick={() => handleEditName(item.id, item.friendlyName ?? '')}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/Timeline.tsx`
- Line 111: `onClick={() => setMobileOpen((v) => !v)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Library/ActionModals.tsx`
- Line 37: `onCancel={() => setDialogAction(null)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Library/TopHeader.tsx`
- Line 44: `onClick={() => setIsCreating(true)}`
- Line 69: `onClick={() => setIsCreating(true)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Library/ActionsCell.tsx`
- Line 29: `onClick={() => navigate(`/experiments/${id}`)}`
- Line 30: `onClick={() => setDialogAction('duplicate')}`
- Line 32: `onClick={() => setDialogAction('archive')}`
- Line 35: `onClick={() => setDialogAction('delete')}`
- Line 44: `onClose={() => setDialogAction(null)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Library/CreateExperimentModal.tsx`
- Line 88: `onCancel={() => setIsCreating(false)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/Header.tsx`
- Line 86: `onClick={() => setDialogAction('duplicate')}`
- Line 89: `onClick={() => setDialogAction('archive')}`
- Line 92: `onClick={() => setDialogAction('delete')}`
- Line 199: `onCancel={() => setDialogAction(null)}`
- Line 214: `onCancel={() => setDialogAction(null)}`
- Line 232: `onCancel={() => setDialogAction(null)}`
- Line 246: `onCancel={() => setDialogAction(null)}`

### `src/apps/dashboard/Screens/Dashboard/Settings/Billing/index.tsx`
- Line 137: `onClick={() => createCheckoutSession(+price.id)}`

### `src/apps/dashboard/Screens/Dashboard/Settings/AgencyTeam/index.tsx`
- Line 125: `onClick={() => setInviteDialogOpen(true)}`
- Line 136: `onClick={() => setInviteDialogOpen(true)}`
- Line 176: `onClick={() => resendInvite(item.email)}`
- Line 217: `() => unblockUser(item.id)`
- Line 230: `() => blockUser(item.id)`
- Line 239: `onClick={() => resendInvite(item.email)}`
- Line 247: `() => deleteUser(item.id)`
- Line 303: `onClick={() => setInviteDialogOpen(false)}`
- Line 315: `onCancel={() => setConfirmDialog({ ...confirmDialog, open: false })}`

### `src/apps/dashboard/Screens/Dashboard/Settings/OrganizationTeam/index.tsx`
- Line 163: `onClick={() => setInviteDialogOpen(true)}`
- Line 176: `onClick={() => setInviteDialogOpen(true)}`
- Line 217: `onClick={() => resendInvite(item.email)}`
- Line 259: `() => unblockUser(item.id)`
- Line 272: `() => blockUser(item.id)`
- Line 281: `onClick={() => resendInvite(item.email)}`
- Line 289: `() => deleteUser(item.id)`
- Line 361: `onClick={() => setInviteDialogOpen(false)}`
- Line 373: `onCancel={() => setConfirmDialog({ ...confirmDialog, open: false })}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentSettings/VariantsConfig.tsx`
- Line 57: `onClick={() => setShowAddVariant(true)}`
- Line 167: `onClose={() => setEditingVariant(null)}`
- Line 176: `onClose={() => setRenamingVariant(null)}`
- Line 180: `onClose={() => setShowAddVariant(false)}`
- Line 193: `onCancel={() => setDeletingVariant(null)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentSettings/CookieTargeting.tsx`
- Line 50: `onClick={() => deleteCookieTargeting(item.id)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentSettings/DeviceTargeting.tsx`
- Line 54: `onClick={() => deleteDeviceTargeting(device.id)}`
- Line 65: `onClick={() => setIsAddOpen(true)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentSettings/GoalsConfig.tsx`
- Line 85: `onCancel={() => setIsDialogOpen(false)}`
- Line 97: `onCheckedChange={() => toggleGoal(tag.name)}`
- Line 113: `onCheckedChange={() => toggleGoal(tag.name)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentSettings/UrlTargeting.tsx`
- Line 95: `onClick={() => openEditDialog(item)}`
- Line 98: `onClick={() => deleteUrlTargeting(item.id)}`
- Line 119: `onCancel={() => setEditItem(null)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentSettings/EditWeightsModal.tsx`
- Line 25: `useState(() => String(Math.round((currentWeight || 0) / 100)))`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentInfo/Description.tsx`
- Line 44: `onClick={() => setIsEditing(true)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentStatistics/StatisticsTable.tsx`
- Line 209: `onClick={() => setWantsToDeploy(item)}`
- Line 227: `onCancel={() => setWantsToDeploy(null)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentInfo/Screenshots/ScreenshotItem.tsx`
- Line 62: `onClick={() => setIsOpen(true)}`
- Line 65: `onLoad={() => setImageLoaded(true)}`
- Line 90: `onClick={() => setEditing(null)}`
- Line 107: `onClick={() => setWantsToDelete(true)}`
- Line 114: `onClose={() => setIsOpen(false)}`
- Line 119: `onCancel={() => setWantsToDelete(false)}`

### `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentInfo/Screenshots/ScreenshotList.tsx`
- Line 49: `onMouseEnter={() => setHovered(screenshot.id)}`
- Line 49: `onMouseLeave={() => setHovered(null)}`

### `src/apps/dashboard/Screens/Dashboard/Websites/List/index.tsx`
- Line 71: `onClick={() => setIsCreating(true)}`
- Line 100: `onClick={() => setIsCreating(true)}`
- Line 112: `onClick={() => setWebsite(value as number)}`
- Line 167: `onClick={() => refreshPropertyTags(item)}`
- Line 190: `onClick={() => recheckPermissions(item.ganPropertyId!)}`
- Line 220: `onClick={() => handleDelete(value as number)}`

### `src/apps/dashboard/Screens/Dashboard/Websites/List/ServerContainerUrl.tsx`
- Line 18: `setTimeout(() => setNewServerContainerUrl(null), 400)`
- Line 45: `onClick={() => setNewServerContainerUrl(null)}`
- Line 53: `onClick={() => setNewServerContainerUrl(website.serverContainerUrl || '')}`

### `src/apps/dashboard/Screens/Dashboard/Websites/List/ScriptsModal.tsx`
- Line 18: `setTimeout(() => setCopiedText(null), 3000)`
- Line 23: `onClick={() => setIsOpen(true)}`
- Line 74: `onClick={() => setIsOpen(false)}`

### `src/apps/dashboard/Screens/Dashboard/Websites/GoogleAnalytics/GoogleAnalyticsScreen.tsx`
- Line 91: `onClick={() => refresh(item.email)}`

### `src/apps/dashboard/Screens/Dashboard/DashboardLayout/index.tsx`
- Line 17: `useGlobal<string>('PAGE_TITLE', () => getPageTitle(location.pathname, MENU_LINKS))`

### `src/apps/dashboard/Screens/Dashboard/DashboardLayout/GlobalAlerts/index.tsx`
- Line 14: `onClose={() => dismiss('Extension')}`
- Line 15: `onClose={() => dismiss('Passkeys')}`

### `src/apps/dashboard/Screens/Dashboard/DashboardLayout/AppSidebar/Navigation.tsx`
- Line 61: `onClick={() => setExpandedMenuItem(expandedMenuItem === item.key ? '' : item.key)}`

### `src/apps/dashboard/Screens/Dashboard/DashboardLayout/AppSidebar/AccountWebsiteSelectors.tsx`
- Line 42: `onClick={() => setOpenPanel('account')}`
- Line 55: `onClick={() => setOpenPanel('website')}`
- Line 315: `onClick={() => chooseOptionValue(option.value as number)}`

---

## Summary by Pattern Type

### 1. Boolean State Setters (e.g., `setState(true/false)`)
Most common pattern - 60+ instances

### 2. Value State Setters (e.g., `setState(someValue)`)
~40 instances

### 3. Handlers with Arguments (e.g., `handleClick(id)`)
~35 instances

### 4. Callbacks to null (e.g., `setItem(null)`)
~25 instances

### 5. Navigation (e.g., `navigate(path)`)
~5 instances

### 6. setTimeout callbacks
~5 instances

---

## High Priority (Inside loops/maps)

These create N function instances per render:

- `src/apps/editor/app/src/Editor/BottomToolbar/Screenshot/ScreenshotList.tsx:38-76`
- `src/apps/editor/app/src/EditorV2/LeftSidebar/ChangesTab.tsx:46-48`
- `src/apps/editor/app/src/EditorV2/RightSidebar/Breadcrumb.tsx:60,100`
- `src/apps/editor/app/src/EditorV2/LeftSidebar/HierarchyTab.tsx:25`
- `src/apps/dashboard/Screens/Dashboard/Experiments/Details/ExperimentInfo/Screenshots/ScreenshotList.tsx:49`
- `src/apps/dashboard/Screens/Dashboard/Settings/AgencyTeam/index.tsx` (multiple in table rows)
- `src/apps/dashboard/Screens/Dashboard/Settings/OrganizationTeam/index.tsx` (multiple in table rows)
- `src/apps/dashboard/Screens/Dashboard/Websites/List/index.tsx` (multiple in table rows)
- `src/apps/dashboard/Screens/Dashboard/Clients/index.tsx` (multiple in table rows)