jquery to determine that multiple input file cannot be null example

This article mainly introduces the jquery to judge multiple input file can not be null example, that is, one time to determine multiple Upload files selection box can not be empty method, the need for friends can refer to the

For example, there are two images uploaded input, must upload pictures:

Html

The code is as follows:
Select file 1: <input type= "file" Name= "myfile[]" class= "myfile" >
Select File 2: <input type= "file" Name= "myfile[]" class= "myfile" >

Js

The code is as follows:
if ($ (". MyFile"). Length = = 2) {

$ (". MyFile"). each (function () {

if ($ (this). val () = "") {

Alert ("Please upload the picture!") ");
Flag = 0;
}
});

}else if ($ (". MyFile"). Length!=2) {

Alert ("Picture cannot be less than 2 pieces!") ");
}