虽然不是最有效的方法,但这在概念上应该是直截了当的:
var fs = require('fs'); //File System
var audioFilePath = 'C:/scanner/audio/'; //Location of recorded audio files
fs.readdir(audioFilePath, function(err, files) {
if (err) { throw err; }
var audioFile = getNewestFile(files, audioFilePath).replace('.wav', '.mp3');
//process audioFile here or pass it to a function...
console.log(audioFile);
});
function getNewestFile(files, path) {
var out = [];
files.forEach(function(file) {
var stats = fs.statSync(path + "/" +file);
if(stats.isFile()) {
out.push({"file":file, "mtime": stats.mtime.getTime()});
}
});
out.sort(function(a,b) {
return b.mtime - a.mtime;
})
return (out.length>0) ? out[0].file : "";
}
顺便说一句,原始帖子中没有明显的理由使用同步文件列表。