Scribble text Animation in after effects | No Plugin

[@anfgraphics1]

freq = 1;
decay = 5;
duration = 0.10;
retard = textIndex*thisComp.frameDuration*2;
t = time - (inPoint + retard);
startVal = [100,100,100];endVal = [0,0,0];
if (t < duration){
linear(t,0,duration,startVal,endVal);
}else{
amp = (endVal - startVal)/duration;
w = freq*Math.PI*2;
endVal + amp*(Math.sin((t-duration)*w)/Math.exp(decay*(t-duration))/w);}

[@akashadearg-due1435]

Awesome thanks