Formdata general usage, mobile, PC-side can be used, PC has compatibility issues

Actually, Formdata is an object.
He is a relatively new thing (in fact, I do not know what to change the name of the good)

Using an FormData object, you can use a series of key-value pairs to simulate a complete form and then use the XMLHttpRequest "form" to send it.

Let me tell you about his usage:

First we're going to new a Formdate object,

For example: var date = new Formdate ();

In fact, I looked at the first glance, I thought it was JQ, because I saw a append haha, we can understand Xx.append (key,val), append there are 2 parameters.

For example: Data.append ("name", "Ye Ye");

We save more data so that we can upload the form using post in Ajax.

var XHR = new XMLHttpRequest ();

XHR = open ("POST", "address");

Xhr.send (date);

Ok!!!! Isn't it simple!

So what if we have more data, and we don't append in?

No! NONO ...

if: $scope. Params is an object that stores an object with a lot of data (key,val) in it, so

var data = new FormData ();
for (var i in $scope. Params) {
Data.append (i, $scope. Params[i]);
}

Isn't it simple again!

This data object, you can send to the backstage.

　　

Formdata general usage, mobile, PC-side can be used, PC has compatibility issues