Delete a file with cordova is really simple, just use the following code
var path = "file:///storage/emulated/0";
var filename = "myfile.txt";
window.resolveLocalFileSystemURL(path, function(dir) {
dir.getFile(filename, {create:false}, function(fileEntry) {
fileEntry.remove(function(){
// The file has been removed succesfully
},function(error){
// Error deleting the file
},function(){
// The file doesn't exist
});
});
});
Remember that you need the file plugin from cordova, read and learn how to use it here.
You can download the file plugin with
cordova plugin add cordova-plugin-file
