PINE v4. Feature List
List of supported variables, functions and language operators
Official documentation:
Pine Script Language Reference Manual
TradingView
If you did not find in the list the function that you use in the indicator or in the strategy, then write to support to add it.

Language operators

+=
-
-=
/
/=
<
<=
==
>
>=
?:
[]
and
bool
box
color
false
float
for
if

Built-in Functions

abs
acos
alma
asin
atan
atr
avg
barssince
ceil
cmo
cos
cross
crossover
crossunder
cum
dev
ema
exp
floor
highest