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fs.watchFile
【fs.watchFile】
fs.watchFile(filename[, options], listener)
Watch for changes on filename
. The callback listener
will be called each time the file is accessed.
The options
argument may be omitted. If provided, it should be an object. The options
object may contain a boolean named persistent
that indicates whether the process should continue to run as long as files are being watched. Theoptions
object may specify an interval
property indicating how often the target should be polled in milliseconds. The default is { persistent: true, interval: 5007 }
.
The listener
gets two arguments the current stat object and the previous stat object:
These stat objects are instances of fs.Stat
.
参考:https://nodejs.org/dist/latest-v6.x/docs/api/fs.html
fs.watchFile