LastBar- Works in premarket and post market too

[Gatekeeper]

Platform

1. Thinkorswim

Tos Chapter 12. Past/Future Offset and Prefetch

declare upper;
input lineLength = 0;#4;
def lastBar = !IsNaN(close) && IsNaN(close[-1]);
def lastClose = if lastBar then close else lastClose[1];
plot data = if IsNaN(close[-lineLength-1]) then lastClose[-lineLength] else Double.NaN;
#data.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
data.SetStyle(Curve.LONG_DASH);
data.SetDefaultColor(Color.CYAN);
data.setlineWeight(2);