Member Avatar for RikTelner 
var x = 0;
var interval = setInterval(function() {
    alert("Loop iteration #" + x++);
    if(x==6) {
        var x = 0;
    }
}, 500);

This code prompts "#NaN" with each message, but I expected it to be going 1, 2, 3, 4, 5 and then back to 1, 2, 3, 4, 5. For endless loop.

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Member Avatar for hericles

Remove the var key word from line 5. You don't want to to be specifying a new version of X, just reset the existing x variable.

Member Avatar for RikTelner

You solved it. Thank you.

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