Pine Script supports single-line comments. Any text from the symbol
//
until the end of the line is considered as comment. An example:
//@version=4
study("Test")
// This line is a comment
a = close // This is also a comment
plot(a)
The Pine Editor has a hotkey for commenting/uncommenting:
Ctrl + /
. Highlight a code fragment and press Ctrl + /
to comment/uncomment whole blocks of code at a time.
Comments cannot be placed in the middle of a statement continued on multiple lines. Read more on this here: Line wrapping.