Syntax error: expecting rightparen before setInterval. Where is the mistake?

Question

Adobe

Outputs: Scene 1, Layer 'Layer 1', Frame 1, Line 7 1084: Syntax error: expecting rightparen before setInterval.
Code:
var t_str = "TEXT";
changeStr( function() {
t_str = (t_str.concat(t_str.substr(0,1))).substr(1);
scroll_txt.text = t_str;
}
setInterval(changeStr, 100);
What's wrong?

Answer 1

Translate simply what the compiler writes. You are missing a closing brace.

Answer 2

You have asked this question 10 times already. take any jquery slider and paste it to yourself at last wherever you want