Javascript Cordova是否检索和删除超过30天的文件?
使用cordova和apache/cordova插件文件插件,如何获取给定目录中超过30天的文件并将其删除?尝试以下代码:Javascript Cordova是否检索和删除超过30天的文件?,javascript,cordova,phonegap-plugins,fileapi,Javascript,Cordova,Phonegap Plugins,Fileapi,使用cordova和apache/cordova插件文件插件,如何获取给定目录中超过30天的文件并将其删除?尝试以下代码: function daysDiff(now, fileDate) { // thanks to http://stackoverflow.com/a/3224854/3340702 var timeDiff = Math.abs(now.getTime() - fileDate.getTime()); return Math.ceil(timeDif
function daysDiff(now, fileDate) {
// thanks to http://stackoverflow.com/a/3224854/3340702
var timeDiff = Math.abs(now.getTime() - fileDate.getTime());
return Math.ceil(timeDiff / (1000 * 3600 * 24));
}
// Process file entries
function deleteOlderFiles(entries) {
var i;
var currentDate = new Date();
for (i=0; i<entries.length; i++) {
if(entries[i].isFile) {
entries[i].file(function(file) {
if(daysDiff(currentDate, file.lastModifiedDate) > 30) {
entries[i].remove(function(){
console.log("File removed");
}, function(){
console.log("Error while removing file");
});
}
}), error);
}
}
}
function fail(error) {
alert("Failed during operations: " + error.code);
}
// Get a directory reader
var directoryEntry = new DirectoryEntry(name, path);
var directoryReader = directoryEntry.createReader();
// Get a list of all the entries in the directory
directoryReader.readEntries(deleteOlderFiles, fail);
有关详细信息,请参阅和文档 尝试使用以下代码:
function daysDiff(now, fileDate) {
// thanks to http://stackoverflow.com/a/3224854/3340702
var timeDiff = Math.abs(now.getTime() - fileDate.getTime());
return Math.ceil(timeDiff / (1000 * 3600 * 24));
}
// Process file entries
function deleteOlderFiles(entries) {
var i;
var currentDate = new Date();
for (i=0; i<entries.length; i++) {
if(entries[i].isFile) {
entries[i].file(function(file) {
if(daysDiff(currentDate, file.lastModifiedDate) > 30) {
entries[i].remove(function(){
console.log("File removed");
}, function(){
console.log("Error while removing file");
});
}
}), error);
}
}
}
function fail(error) {
alert("Failed during operations: " + error.code);
}
// Get a directory reader
var directoryEntry = new DirectoryEntry(name, path);
var directoryReader = directoryEntry.createReader();
// Get a list of all the entries in the directory
directoryReader.readEntries(deleteOlderFiles, fail);
有关详细信息,请参阅和文档 看这里:你要找的是lastModifiedDate。看这里:你要找的是lastModifiedDate。更彻底地看了之后,我意识到这并不完全正确。fileEntry上的file方法是一个异步方法,但这非常接近。我向remove方法添加了回调,以便您可以跟踪成功/错误状态。条目[I]。文件是异步的。我应该为var directoryEntry=new DirectoryEntryname,path;名称和路径,以清除文件夹的根目录?无论我做什么尝试,我总是会遇到缺少命令的错误。在更彻底地研究之后,我意识到这并不完全正确。fileEntry上的file方法是一个异步方法,但这非常接近。我向remove方法添加了回调,以便您可以跟踪成功/错误状态。条目[I]。文件是异步的。我应该为var directoryEntry=new DirectoryEntryname,path;名称和路径,以清除文件夹的根目录?不管我怎么做,我总是会遇到缺少命令的错误