Understanding js line R = 255 * (R <= 0 ? 0 : R>= 1 ? 1 : Math.pow(R, 1 / gC));

Question

Can you please explain me the meaning of this line :
R = 255 * (R <= 0 ? 0 : R>= 1 ? 1 : Math.pow(R, 1 / gC));
.
? Am I right?? thank you
P
if R <=0 then R =255*0
Else
If R>=1 then R=255*1
Else R =255* (R^1/gC)

Answer 1

Yes, though R^(1/gC) should be used to show that is processed first.