Optional
destinationAn optional function, or map of levels to functions, to use to print each log line.
If not specified, the default is console.error
.
If a function is specified, basicLogger
calls it to write each line of output. The
argument is a fully formatted log line, not including a linefeed. The function
is only called for log levels that are enabled.
If a map is specified, then each entry will be used as the destination for the corresponding
log level. Any level that is not specified will use the default of console.error
.
Setting this property to anything other than a function will cause SDK initialization to fail.
Optional
formatterAn optional formatter to use. The formatter should be compatible
with node-style format strings like those used with util.format
.
If not specified, then a default implementation will be used. But using a node-specific implementation, for instance, would have performance and quality benefits.
Rest
...args: any[]Rest
Optional
levelThe lowest level of log message to enable.
See LDLogLevel for a list of possible levels. Setting a level here causes
all lower-importance levels to be disabled: for instance, if you specify
'warn'
, then 'debug'
and 'info'
are disabled.
If not specified, the default is 'info'
(meaning that 'debug'
is disabled).
Optional
nameName to use for the log entires. The default name is LaunchDarkly
.
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Configuration for basicLogger.