Javascript .files [0]是否可以在ie8,9,10中使用？

Question

Javascript .files[0] can use in ie8 , 9 , 10 ?

I tested my code (javascript get file size before upload) on modern browser. it's work good.

and not work on my ie7 .

I want to know .files[0] are work in ie8 , 9 , 10 or not ?

If possible, could you please give me some browser and version that support Javascript .files[0]

https://jsfiddle.net/gg1j970x/

<script>
function test_fn() {
    var xx_data = document.getElementById("xx");
    var xx_data_file = xx_data.files[0];
    var xx_data_file_size = xx_data_file.size;  
    alert("file size : " +xx_data_file_size+" kB");
};
</script>

Answer 1

interesting question, answer here - > https://developer.mozilla.org/en-US/docs/Web/API/Blob/size

also you need to change it to "bytes" alert("file size : " +xx_data_file_size+" bytes");