I am getting a Javascript object req.files . This object can have multiple files under it. req.files is an object and not an array.
So of if user adds three files, the object will look like:
req.files.file0
req.files.file1
req.files.file2
where file0, file1 etc is another object.
User can add upto 15 files. How can I check loop over such objects & read information from req.files.fileX ? I need to support IE 11 & chrome.
You can use bracket notation to access the properties of an object by a string. Try this:
for (var i = 0; i < Object.keys(req.files).length; i++) {
var file = req.files['file' + i];
if (file) {
// use file here...
}
}
So I'm assuming your req object looks like this:
var req = {
files: {
file0: {},
file1: {},
file2: {},
//...
file14: {}
}
};
If so, you can reference the file like this: req.files['file0']
So your loop could look like this:
for (prop in req.files) {
var file = req.files[prop];
}
But you don't even need to use a loop:
var getReqFile = function(x){
return req.files['file' + x] || null;
}
var file = getReqFile(5);
req.files["file" + i]