Server : nginx/1.20.1 System : Linux ccpf-production-2021 5.4.0-148-generic #165-Ubuntu SMP Tue Apr 18 08:53:12 UTC 2023 x86_64 User : forge ( 1000) PHP Version : 7.4.21 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/lib/node_modules/npm/node_modules/isstream/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

var stream = require('stream')


function isStream (obj) {
  return obj instanceof stream.Stream
}


function isReadable (obj) {
  return isStream(obj) && typeof obj._read == 'function' && typeof obj._readableState == 'object'
}


function isWritable (obj) {
  return isStream(obj) && typeof obj._write == 'function' && typeof obj._writableState == 'object'
}


function isDuplex (obj) {
  return isReadable(obj) && isWritable(obj)
}


module.exports            = isStream
module.exports.isReadable = isReadable
module.exports.isWritable = isWritable
module.exports.isDuplex   = isDuplex