将附加参数传递给Javascript回调函数

您可以使用

Function.bind

function updated(extraInformation, event, filename) {    log("CHANGEDt/share/channels/" + extraInformation + filename);}for(i in channels)    fs.watch('share/channels/' + channels[i], {persistent: false},   updated.bind(null, 'wherever/it/is/'));