Identifiers
Identifiers are names used for user-defined variables and functions:
- They must begin with an uppercase (
A-Z) or lowercase (a-z) letter, or an underscore (_). - The next characters can be letters, underscores or digits (
0-9). - They are case-sensitive.
Here are some examples:
myVar
_myVar
my123Var
functionName
MAX_LEN
max_len
maxLen
3barsDown // NOT VALID!
The Pine Script™ Style Guide recommends using uppercase SNAKE_CASE for constants, and camelCase for other identifiers:
GREEN_COLOR = #4CAF50
MAX_LOOKBACK = 100
int fastLength = 7
// Returns 1 if the argument is `true`, 0 if it is `false` or `na`.
zeroOne(boolValue) => boolValue ? 1 : 0