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This page describes the mapping between BrightScript and JavaScript APIs. BrightScript functionality is implemented in JavaScript using the BrightSign JavaScript API and the older BS- JavaScript objects; BrightScript APIs are not ported when standard JavaScript libraries provide equivalent functionality.
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BrightScript API | JavaScript Equivalent | Library |
|---|---|---|
Global Functions | ||
CreateObject() | Not applicable | |
RestartScript() | Not applicable | |
RestartApplication() | process.exit() | Node.js® |
Sleep() | Not applicable | |
asc() | String.charCodeAt() | JavaScript built-in |
chr() | String.fromCharCode() | JavaScript built-in |
len() | String.length | JavaScript built-in |
str() | Number.toString() | JavaScript built-in |
strl() | Number.toString() | JavaScript built-in |
val() | Number() | JavaScript built-in |
abs() | Math.abs() | JavaScript built-in |
atn() | Math.atan() | JavaScript built-in |
csng() | Not applicable | |
cdbl() | Not applicable | |
cint() | Not applicable | |
cos() | Math.cos() | JavaScript built-in |
exp() | Math.exp() | JavaScript built-in |
fix() | Number.toFixed() | JavaScript built-in |
int() | Math.trunc() | JavaScript built-in |
log() | Math.log() | JavaScript built-in |
sgn() | Math.sign() | JavaScript built-in |
sgnl() | Math.sign() | JavaScript built-in |
sin() | Math.sin() | JavaScript built-in |
tan() | Math.tan() | JavaScript built-in |
sqr() | Math.sqrt() | JavaScript built-in |
Left(target_string, n) | target_string.substr(0, n)* | JavaScript built-in |
Right(target_string, n) | target_string.substr(target_string.length - n)* target_string.substr(-n)* | JavaScript built-in |
StringI() | String.repeat() | JavaScript built-in |
Mid(target_string, start_position, length | target_string.substr(start_position, length)* | JavaScript built-in |
Instr() | String.indexOf() | JavaScript built-in |
GetInterface() | Access object interfaces as strings | |
Wait() | Not applicable in JavaScript, unless the function is used without reference to ports, and merely to delay execution for a time, in which case, use setTimeout(). | JavaScript built-in |
ReadAsciiFile() | readFileSync() Async operations are always preferable. | Node.js® |
WriteAsciiFile() | fs.writeFile() Async operations are always preferable. | Node.js® |
ListDir() | fs.readDir() Async operations are always preferable. | Node.js® |
MatchFiles() | fs.readDir() Async operations are always preferable. Additional JavaScript code is needed to complete matching. | Node.js® |
LCase() | String.toLowerCase() | JavaScript built-in |
UCase() | String.toUpperCase() | JavaScript built-in |
DeleteFile() | fs.unlink() Async operations are always preferable. | Node.js® |
DeleteDirectory() | fs.rmdir() Async operations are always preferable. | Node.js® |
CreateDirectory() | fs.mkdir() Async operations are always preferable. | Node.js® |
RebootSystem() | system.reboot() | BrightSign JavaScript API |
ShutdownSystem() | Not available | |
UpTime() | OS.uptime() | Node.js® |
FormatDrive() | No exact equivalent. | |
EjectDrive() | Not available | |
CopyFile() | fs.copyFile() Async operations are always preferable. | Node.js® |
MoveFile() | fs.rename() Async operations are always preferable. | Node.js® |
MapFilenameToNative() | Not applicable | |
strtoi() | parseInt() strtoi() parses in base 10, whereas JavaScript supports any base. | JavaScript built-in |
rnd() | JavaScript built-in | |
RunGarbageCollector() | Not applicable | |
GetDefaultDrive() | Not applicable | Node.js® |
SetDefaultDrive() | process.chdir() | Node.js® |
EnableZoneSupport() | Not applicable | |
EnableAudioMixer() | Not applicable | |
Pi() | Math.PI | JavaScript built-in |
ParseJson() | JSON.parse() BrightScript returns Invalid in the case of problematic strings, whereas JavaScript throws an exception. | JavaScript built-in |
FormatJson() | JSON.stringify() JSON.stringify must be invoked with a custom replacer, for example, Cyclic_object_value or WebReflection/flatted#flatted | JavaScript built-in |
Core Objects | ||
roArray | Not applicable | |
roAssociativeArray | Not applicable | |
roBoolean | Not applicable | |
roByteArray | Blob() Note that JavaScript now has typed arrays (for example, Uint8Array) . | File API |
roDouble | Not applicable | |
roFunction | Not applicable | |
roInt, roFloat, roString | Not applicable | |
roList | Use JavaScript built-in function | |
roMessagePort | Not applicable | |
roRegex | RegExp() | |
roXMLElement | DOMParser() | |
roXMLList | DOMParser() | |
Presentation Objects | ||
roAudioEventMx | Not available | |
roAudioOutput | ||
roAudioPlayer | Use html audio tag | |
roCanvasWidget | Not applicable | |
roClockWidget | Not applicable | |
roHdmiInputChanged | videoinput.VideoInputConfiguration.hdmiinputchanged | |
roHdmiOutputChanged | videooutput.VideoOutputConfiguration.hotplugevent | |
roHTMLWidget | ||
roImageBuffer | Not applicable | |
roImagePlayer | ||
roImageWidget | ||
roRectangle | Not applicable | |
roStreamQueue | Not available | |
roTextField | Not applicable | |
roTextWidget | Not applicable | |
roTouchEvent | TouchEvent() | Web API |
roTouchScreen | Not available | |
SetResolution() | Browser performs mapping | |
AddRectangle() | Map CSS cursor properties to hardware cursor | |
AddCircleRegion() | Map CSS cursor properties to hardware cursor | |
ClearRegions() | Not applicable | |
GetDeviceName() | Not applicable | |
SetCursorPosition() | Simulate mouse cursor events in JavaScript | |
SetCursorBitmap() | Map CSS cursor properties to hardware cursor | |
EnableCursor() | Map CSS cursor properties to hardware cursor | |
EnableRollover() | Not applicable | |
EnableRegion() | Map CSS cursor properties to hardware cursor | |
SetRollOverOrigin() | Map CSS cursor properties to hardware cursor | |
IsMousePresent() | pointer.isMousePresent() | |
SetMouseRotation() | Not applicable | |
EnableSerialTouchscreen() | Not available | |
SetSerialTouchscreenConfiguration() | Not available | |
GetDiagnosticInfo() | pointerCalibration.getDiagnosticInfoHTML() | |
StartCalibration() | pointerCalibration.startCalibration() | |
GetCalibrationStatus() | pointerCalibration.getCalibrationStatus() | |
ClearStoredCalibration() | pointerCalibration.clearStoredCalibration() | |
StartEventLogging() | pointerCalibration.startEventLogging() | |
StopEventLogging() | pointerCalibration.stopEventLogging() | |
ClearEventLogs() | Not applicable (no information on the log) | |
SetCalibrationRanges() | pointerCalibration.setCalibrationRanges() | |
roVIdeoInput | MediaDevices.getUserMedia() | Web API |
roVideoMode | ||
SetMode() | videomodeconfiguration.setMode() | |
SetModeForNextBoot() | Not applicable (use @brightsign/videomodeconfiguration SetMode()) | |
GetModeForNextBoot() | Not applicable (use @brightsign/videomodeconfiguration getActiveMode()) | |
GetBestMode() | videomodeconfiguration.getBestMode() | |
GetMode() | videomodeconfiguration.getActiveMode() | |
GetActiveMode() | videomodeconfiguration.getActiveMode() | |
GetAvailableModes() | videomodeconfiguration.getAvailableModes() | |
GetConfiguredMode() | videomodeconfiguration.getConfiguredMode() | |
GetFPS | videomodeconfiguration.getActiveMode() | |
SetDecoderMode() | decoderconfiguration.applyConfig() | |
GetDecoderModes() | decoderconfiguration.getConfig() | |
Set3DMode() | videooutput.set3dMode() | |
Screenshot() | screenshot.syncCapture()/asyncCapture() | |
GetResX() | videomodeconfiguration.Mode.graphicsPlaneWidth | |
GetRexY() | videomodeconfiguration.Mode.graphicsPlaneHeight | |
GetVideoResX() | videomodeconfiguration.Mode.width | |
GetVideoResY() | videomodeconfiguration.Mode.height | |
GetOutputResX() | videooutput.Size.width | |
GetOutputResY() | videooutput.Size.height | |
GetSafeX() | BSVideoMode.safeX | BS- JavaScript objects |
GetSafeY() | BSVideoMode.safeY | BS- JavaScript objects |
SafeWidth() | BSVideoMode.safeWidth | BS- JavaScript objects |
SafeHeight() | BSVideoMOde.safeHeight | BS- JavaScript objects |
SetGraphicsZOrder | Not applicable | |
PauseGraphics() | compositor.pause() | |
ResumeGraphics() | compositor.resume() | |
SetImageSizeThreshold() | system.setImageSizeThreshold() | |
AdjustGraphicsColor() | videooutput.adjustGraphicColor() | |
ConfigureHdmiInput() | videoinput.ApplyConfig() | |
SetHdmiMetadata() | Not available and possibly not applicable | |
GetHdmiOutputStatus() | videooutput.getOutputStatus() | |
GetHdmiInputStatus() | videoinput.getStatus() | |
GetCompositorCrc() | compositor.getCrc() | |
GetTxHdcpStatus() | videooutput.getTxHdcpStatus() | |
ForceHdcpOn() | videooutput.forceHdcpOn() | |
DisableHdcpRepeater() | videooutput.DisableHdcpRepeater() | |
SetBackgroundColor() | videooutput.setBackgroundColor() | |
SetPowerSaveMode() | videooutput.SetPowerSaveMode() | |
IsAttached() | videooutput.isAttached() | |
HdmiAudioDisable() | videooutput.disableAudio() | |
SetMultiscreenBezel() | videooutput.setMultiscreenBezel() | |
SaveEdids() | videooutput.getEdid() returns EDID information as a hex-encoded string. | |
GetEdidIdentity() | videooutput.getEdidIdentity() | |
SetMpcdi() | videooutput.setMpcdi() | |
SetSyncDomain() | videooutput.setSyncDomain() | |
roVideoPlayer | Use <video> elements with BrightSign properties | |
File Objects | Use Node.js File API | |
Hashing and Storage Objects | ||
roBlockCipher | Node.js Crypto API | |
roBrightPackage | Node.js Zlib API | |
roDiskErrorEvent | Not available | |
roDiskMonitor | Not available | |
roHashGenerator | Node.js Crypto API | |
roPassKey | Node.js Crypto API | |
roRegistry | ||
GetSectionList() | registry.read() | |
Delete() | registry.write() | |
Flush() | Not applicable; registry writes are flushed implicitly | |
roRegistrySection | ||
Read() | registry.read() | |
Write() | registry.write() | |
Delete() | registry.write() | |
Exists() | Not applicable (Use read followed by a truthy check on the registry key) | |
Flush() | Not applicable; registry writes are flushed implicitly | |
GetKeyList() | Not applicable (Use read followed by Object.keys()) | |
roSqliteDatabase | Use IndexedDB | |
roSqliteStatement | Use IndexedDB | |
roStorageAttached | node.js fs.watch() | |
roStorageDetached | node.js fs.watch() | |
roStorageHotplug | node.js fs.watch() | |
roStorageInfo | ||
GetBytesPerBlock() | filesysteminfo.getStatistics() | |
GetSizeInMegabytes() | filesysteminfo.getStatistics() | |
GetUsedInMegabytes() | node.js fs.stat() | |
GetFreeInMegabytes() | filesysteminfo.getStatistics() | |
GetFileSystemType() | filesysteminfo.getFileSystemType() | |
GetStorageCardInfo() | storageinfo.getStorageCardInfo() | |
roVirtualMemory | Not available | |
Content Management Objects | ||
roAssetCollection | Not available | |
roAssetFetcher | ||
roAssetPool | ||
roAssetPoolFiles | ||
roAssetRealizer | ||
roSyncSpec | Not applicable | |
Networking Objects | ||
roDatagramReceiver | Node.js Dgram API | |
roDatagramSender | Node.js Dgram API | |
roDatagramSocket | Node.js Dgram API | |
roHttpServer | Node.js | |
roKeyStore | ||
roMediaServer | node-media-server | |
roMediaStreamer | Not available | |
roMimeStream | Not applicable | |
roNetworkAdvertisement | Not applicable (use node.js) | |
roNetworkConfiguration | ||
Apply() | networkconfiguration.applyConfig() | |
SetupDWS() | dwsconfiguration | |
EnableLEDs() | networkconfiguration.enableLeds() | |
SetClientIdentifier() | networkconfiguration.NetworkInterfaceConfig.clientIdentifier | |
GetClientIdentifier() | networkconfiguration.NetworkInterfaceConfig.clientIdentifier | |
SetLoginPassword() | hostconfiguration.HostConfigWritable.loginPassword | |
SetObfuscatedLoginPassword() | hostconfiguration.HostConfigWritable.ObfuscatedLoginPassword | |
SetInboundShaperRate() | networkconfiguration.NetworkInterfaceConfig.inboundShaperRate | |
SetMTU() | networkconfiguration.NetworkInterfaceConfig.mtu | |
SetRoutingMetric() | networkconfiguration.NetworkInterfaceConfig.metric | |
SetDHCP() | networkconfiguration.NetworkInterfaceConfig.ipAddressList | |
SetEnabledProtocols() | networkconfiguration.NetworkInterfaceConfig.enabledProtocolList | |
SetIP4Address() | networkconfiguration.NetworkInterfaceConfig.ipAddressList | |
SetIP4Netmask() | networkconfiguration.NetworkInterfaceConfig.ipAddressList | |
SetIP4Broadcast() | networkconfiguration.NetworkInterfaceConfig.ipAddressList | |
SetIP4Gateway() | networkconfiguration.NetworkInterfaceConfig.ipAddressList | |
SetVlanIds() | networkconfiguration.NetworkInterfaceConfig.vlanIdList | |
SetWiFiESSID()/.GetWiFiESSID() | networkconfiguration.WiFiInterfaceConfig.essId | |
SetWiFiPassphrase() | networkconfiguration.WiFiInterfaceConfig.passphrase | |
SetWiFiPassphraseAndObfuscate() | networkconfiguration.WiFiInterfaceConfig.obfuscatedPassphrase | |
SetWiFiAccessPointMode() | networkconfiguration.WiFiInterfaceConfig.accessPointMode | |
SetAccessPointFrequencyMHz() | networkconfiguration.WiFiInterfaceConfig.accessPointFrequency | |
SetWiFiIdentity() | networkconfiguration.WiFiInterfaceConfig.identity | |
SetWiFiEapTlsOptions() | networkconfiguration.WiFiInterfaceConfig.eapTlsOptions | |
SetWiFiCACertificates() | networkconfiguration.WiFiInterfaceConfig.caCertificates | |
SetWiFiClientCertificate() | networkconfiguration.WiFiInterfaceConfig.clientCertificate | |
SetWiFiPrivateKey() | networkconfiguration.WiFiInterfaceConfig.privateKey | |
SetWiFiSecurityMode() | networkconfiguration.WiFiInterfaceConfig.securityMode | |
ConfigureDHCPServer() | networkconfiguration.NetworkInterfaceConfig.dhcpServerConfig | |
SetForwardingPolicy() | Not available | |
SetDNSServers()/.AddDNSServer() | networkconfiguration.NetworkInterfaceConfig.dnsServerList | |
SetTimeServer() | hostconfiguration.HostConfig.timeServerList | |
SetTimeServerIntervalSeconds()/ GetTimeServerIntervalSecons() | hostconfiguration.HostConfig.timeServerInterval | |
SetHostName()/.GetHostName() | hostconfiguration.HostConfig.hostName | |
SetProxy()/.GetProxy() | hostconfiguration.HostConfig.proxy | |
SetProxyBypass()/.GetProxyBypass() | hostconfiguration.HostConfig.proxyBypassList | |
GetRecoveryUrl() | Not available | |
ResetInterfaceSettings() | networkconfiguration.applyConfig() | |
ResetHostSettings() | hostconfiguration.applyConfig() | |
GetCurrentConfig() | networkconfiguration.getConfig()/hostconfiguration.getConfig() | |
TestInterface() | networkdiagnostics.testNetworkInterface() | |
TestInternetConnectivity() | networkdiagnostics.testInternetConnectivity() | |
GetNeighborInformation() | networkconfiguration.getNeighborInformation() | |
ScanWiFi() | networkconfiguration.scan() | |
roNetworkHotplug | ||
roNetworkAttached | ||
roNetworkDetached | ||
roNetworkDiscovery | Not applicable (node.js can be used instead) | |
roNetworkStatistics | Not applicable (See node module net-stat) | |
roPtp | hostconfiguration (see OS 8.0.94 release note) | |
roRssArticle/roRssParser | Not applicable | |
roRtspStream | Use <video> elements | |
roSnmpAgent | net-snmp | npm** |
roStream | Not applicable | |
roSyncManager | BS- JavaScript objects | |
roTCPServer/roTCPStream | net.socket | Node.js® |
roUPnP | Not applicable | |
roUrlTransfer | http | Node.js® |
Input/Output Objects | ||
roBtManager | BS- JavaScript objects | |
roBtClientManager/roBtClient | ||
roCecInterface | BS- JavaScript objects | |
roChannelManager | obsolete | |
roControlPort | BS- JavaScript objects | |
roGpioControlPort | BS- JavaScript objects | |
roIRReceiver | BS- JavaScript objects | |
roIRTransmitter | BS- JavaScript objects | |
roIRRemote | BSIRRemote | |
roKeyboard | ||
roSequenceManager | Not applicable | |
roSerialPort | BS- JavaScript objects | |
System Objects | ||
roDeviceCustomization | Not available | |
roDeviceInfo | ||
roResourceManager | Not applicable | |
roSystemLog | Not available | |
Date and Time Objects | ||
roDateTime | Date | JavaScript built-in |
roSystemTime | ||
roTimer | .setTimeout()/.setInterval() | Web API |
roTimeSpan | Date | JavaScript built-in |
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