Run results for: Includes vs has

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Safari/605.1.15

Browser: Safari 16

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
isText valid	2400849.8 Ops/sec
isText invalid	1570927.5 Ops/sec
isText as Set valid	23071624.0 Ops/sec
isText as Set invalid	28096358.0 Ops/sec

Script Preparation code:

const modifierKeys = [
  'Alt',
  'AltGraph',
  'CapsLock',
  'Control',
  'Fn',
  'FnLock',
  'Meta',
  'NumLock',
  'ScrollLock',
  'Shift',
  'Symbol',
  'SymbolLock',
  'Hyper',
  'Super',
  'OS', // https://bugzilla.mozilla.org/show_bug.cgi?id=1232918)
];

const whitespaceKeys = ['Enter', 'Tab'];

const navigationKeys = [
  'ArrowDown',
  'ArrowLeft',
  'ArrowRight',
  'ArrowUp',
  'End',
  'Home',
  'PageDown',
  'PageUp',
];

const editingKeys = [
  'Backspace',
  'Clear',
  'Copy',
  'CrSel',
  'Cut',
  'Delete',
  'EraseEof',
  'ExSel',
  'Insert',
  'Paste',
  'Redo',
  'Undo',
];

const uiKeys = [
  'Accept',
  'Again',
  'Attn',
  'Cancel',
  'ContextMenu',
  'Escape',
  'Execute',
  'Find',
  'Help',
  'Pause',
  'Play',
  'Props',
  'Select',
  'ZoomIn',
  'ZoomOut',
];

const deviceKeys = [
  'BrightnessDown',
  'BrightnessUp',
  'Eject',
  'LogOff',
  'Power',
  'PowerOff',
  'PrintScreen',
  'Hibernate',
  'Standby',
  'WakeUp',
];

const compositionKeys = [
  'AllCandidates',
  'Alphanumeric',
  'CodeInput',
  'Compose',
  'Convert',
  // When a user presses alt+e, alt+u, etc on a Mac, the key value is "Dead"
  // i.e, a dead character for an accent that'll be used next
  'Dead',
  'FinalMode',
  'GroupFirst',
  'GroupLast',
  'GroupNext',
  'GroupPrevious',
  'ModeChange',
  'NextCandidate',
  'NonConvert',
  'PreviousCandidate',
  'Process',
  'SingleCandidate',
  'HangulMode',
  'HanjaMode',
  'JunjaMode',
  'Eisu',
  'Hankaku',
  'Hiragana',
  'HiraganaKatakana',
  'KanaMode',
  'KanjiMode',
  'Katakana',
  'Romaji',
  'Zenkaku',
  'ZenkakuHankaku',
];

const fnKeys = [
  'F1',
  'F2',
  'F3',
  'F4',
  'F5',
  'F6',
  'F7',
  'F8',
  'F9',
  'F10',
  'F11',
  'F12',
  'Soft1',
  'Soft2',
  'Soft3',
  'Soft4',
];

const multimediaKeys = [
  'ChannelDown',
  'ChannelUp',
  'Close',
  'MailForward',
  'MailReply',
  'MailSend',
  'MediaClose',
  'MediaFastForward',
  'MediaPause',
  'MediaPlay',
  'MediaPlayPause',
  'MediaRecord',
  'MediaRewind',
  'MediaStop',
  'MediaTrackNext',
  'MediaTrackPrevious',
  'New',
  'Open',
  'Print',
  'Save',
  'SpellCheck',
];

const audioKeys = [
  'AudioBalanceLeft',
  'AudioBalanceRight',
  'AudioBassBoostDown',
  'AudioBassBoostToggle',
  'AudioBassBoostUp',
  'AudioFaderFront',
  'AudioFaderRear',
  'AudioSurroundModeNext',
  'AudioTrebleDown',
  'AudioTrebleUp',
  'AudioVolumeDown',
  'AudioVolumeUp',
  'AudioVolumeMute',
  'MicrophoneToggle',
  'MicrophoneVolumeDown',
  'MicrophoneVolumeUp',
  'MicrophoneVolumeMute',
];

const speechKeys = ['SpeechCorrectionList', 'SpeechInputToggle'];

const applicationKeys = [
  'LaunchApplication1',
  'LaunchApplication2',
  'LaunchCalendar',
  'LaunchContacts',
  'LaunchMail',
  'LaunchMediaPlayer',
  'LaunchMusicPlayer',
  'LaunchPhone',
  'LaunchScreenSaver',
  'LaunchSpreadsheet',
  'LaunchWebBrowser',
  'LaunchWebCam',
  'LaunchWordProcessor',
];
const browserKeys = [
  'BrowserBack',
  'BrowserFavorites',
  'BrowserForward',
  'BrowserHome',
  'BrowserRefresh',
  'BrowserSearch',
  'BrowserStop',
];
const mobilePhoneKeys = [
  'AppSwitch',
  'Call',
  'Camera',
  'CameraFocus',
  'EndCall',
  'GoBack',
  'GoHome',
  'HeadsetHook',
  'LastNumberRedial',
  'Notification',
  'MannerMode',
  'VoiceDial',
];

const tvKeys = [
  'TV',
  'TV3DMode',
  'TVAntennaCable',
  'TVAudioDescription',
  'TVAudioDescriptionMixDown',
  'TVAudioDescriptionMixUp',
  'TVContentsMenu',
  'TVDataService',
  'TVInput',
  'TVInputComponent1',
  'TVInputComponent2',
  'TVInputComposite1',
  'TVInputComposite2',
  'TVInputHDMI1',
  'TVInputHDMI2',
  'TVInputHDMI3',
  'TVInputHDMI4',
  'TVInputVGA1',
  'TVMediaContext',
  'TVNetwork',
  'TVNumberEntry',
  'TVPower',
  'TVRadioService',
  'TVSatellite',
  'TVSatelliteBS',
  'TVSatelliteCS',
  'TVSatelliteToggle',
  'TVTerrestrialAnalog',
  'TVTerrestrialDigital',
  'TVTimer',
];
const mediaControllerKeys = [
  'AVRInput',
  'AVRPower',
  'ColorF0Red',
  'ColorF1Green',
  'ColorF2Yellow',
  'ColorF3Blue',
  'ColorF4Grey',
  'ColorF5Brown',
  'ClosedCaptionToggle',
  'Dimmer',
  'DisplaySwap',
  'DVR',
  'Exit',
  'FavoriteClear0',
  'FavoriteClear1',
  'FavoriteClear2',
  'FavoriteClear3',
  'FavoriteRecall0',
  'FavoriteRecall1',
  'FavoriteRecall2',
  'FavoriteRecall3',
  'FavoriteStore0',
  'FavoriteStore1',
  'FavoriteStore2',
  'FavoriteStore3',
  'Guide',
  'GuideNextDay',
  'GuidePreviousDay',
  'Info',
  'InstantReplay',
  'Link',
  'ListProgram',
  'LiveContent',
  'Lock',
  'MediaApps',
  'MediaAudioTrack',
  'MediaLast',
  'MediaSkipBackward',
  'MediaSkipForward',
  'MediaStepBackward',
  'MediaStepForward',
  'MediaTopMenu',
  'NavigateIn',
  'NavigateNext',
  'NavigateOut',
  'NavigatePrevious',
  'NextFavoriteChannel',
  'NextUserProfile',
  'OnDemand',
  'Pairing',
  'PinPDown',
  'PinPMove',
  'PinPToggle',
  'PinPUp',
  'PlaySpeedDown',
  'PlaySpeedReset',
  'PlaySpeedUp',
  'RandomToggle',
  'RcLowBattery',
  'RecordSpeedNext',
  'RfBypass',
  'ScanChannelsToggle',
  'ScreenModeNext',
  'Settings',
  'SplitScreenToggle',
  'STBInput',
  'STBPower',
  'Subtitle',
  'Teletext',
  'VideoModeNext',
  'Wink',
  'ZoomToggle',
];

function isText(eventKey) {
  return !modifierKeys.includes(eventKey) &&
    !whitespaceKeys.includes(eventKey) &&
    !navigationKeys.includes(eventKey) &&
    !editingKeys.includes(eventKey) &&
    !uiKeys.includes(eventKey) &&
    !deviceKeys.includes(eventKey) &&
    !compositionKeys.includes(eventKey) &&
    !fnKeys.includes(eventKey) &&
    !multimediaKeys.includes(eventKey) &&
    !audioKeys.includes(eventKey) &&
    !speechKeys.includes(eventKey) &&
    !applicationKeys.includes(eventKey) &&
    !browserKeys.includes(eventKey) &&
    !mobilePhoneKeys.includes(eventKey) &&
    !tvKeys.includes(eventKey) &&
    !mediaControllerKeys.includes(eventKey);
}

const keysAsSet = new Set([...whitespaceKeys,
  ...navigationKeys,
  ...editingKeys,
  ...uiKeys,
  ...deviceKeys,
  ...compositionKeys,
  ...fnKeys,
  ...multimediaKeys,
  ...audioKeys,
  ...speechKeys,
  ...applicationKeys,
  ...browserKeys,
  ...mobilePhoneKeys,
  ...tvKeys,
  ...mediaControllerKeys]);

function isTextAsSet(eventKey) {
  return keysAsSet.has(eventKey);
}

Tests:

isText valid
return isText('BrowserStop');
isText invalid
return isText('sarasa');
isText as Set valid
return isTextAsSet('BrowserStop');
isText as Set invalid
return isTextAsSet('sarasa');

Run results for: Includes vs has

isText valid

isText invalid

isText as Set valid

isText as Set invalid