Question

This may seem simple to some but I am less experienced with JavaScript. I have two functions. One is called when my upload begins. The next is called when my upload ends.

In the first function, a variable is created, a unique id used for the upload. What is the best way to go about reusing it in my second function since it is not global? The reason I defined it within my function is because every time a user clicks the upload button, the function is called and a NEW id is created for that upload, that is why I do not want to define it outside because then the same id would be served for a second upload unless the page is refreshed.

Anyone got any suggestions?

function uploadstart() {

    function makeid() {
        var text = "";
        var possible = "abcdefghijklmnopqrstuvwxyz0123456789";

        for( var i=0; i < 32; i++ )
            text += possible.charAt(Math.floor(Math.random() * possible.length));

        return text;
    }

    var rand_id = makeid();

}

uploadfinish(){
    //rand_id will be undefined
}

Answer 1

Try declaring rand_id in global scope (before everything)

var rand_id;
function bla....