Declare variables programmatically?

Question

I am trying to create a bunch of variables like this:

function l(){
    var a1 = 2,
        a2 = 4,
        a3 = 6,
        a4 = 8,
          .
          .
          


        

Answer 1

I guess its better for you to go with an array, like:

function l(){
    var a = [];
    for(var i=0; i<20; i++){
        a[i] = 2*i;
    }
}

Or if you really want the long list of variables, try this. But its using eval()

function l(){
    var js = '';
    for(var i=0; i<20; i++){
        js += 'var a'+i+' = '+2*i+';'
    }
    eval (js);
}