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  <title>JS Bin</title>
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<script id="jsbin-javascript">
// Name: Payton Dudley

// Exercise: Sum Nested Arrays


function arraySum(i) {
    var sum=0; // missing var added
    for(var a=0;a<i.length;a++){ // missing var added
        if(typeof i[a]=="number"){
            sum+=i[a];
        }else if(i[a] instanceof Array){
            sum+=arraySum(i[a]);
        }
    }
    return sum;
}
</script>


<script id="jsbin-source-javascript" type="text/javascript">// Name: Payton Dudley

// Exercise: Sum Nested Arrays


function arraySum(i) {
    var sum=0; // missing var added
    for(var a=0;a<i.length;a++){ // missing var added
        if(typeof i[a]=="number"){
            sum+=i[a];
        }else if(i[a] instanceof Array){
            sum+=arraySum(i[a]);
        }
    }
    return sum;
}</script></body>
</html>