Pine Script Part 2: Variables, Operators, and Data Structures

In this part, we explore the core components of Pine Script: variables, operators, bar values, data types, and arrays. These concepts form the foundation of all indicators and strategies.

Data Types in Pine Script

Common types:

• int
• float
• string
• bool
• color
• line / label

Example:

myNumber = 10
myText = "Hello"
isBull = close > open

Creating Variables

Standard variable:

x = close

Persistent variable (only initialized once):

var counter = 0
counter += 1

Operators

• Math: + - * /
• Logical: and or not
• Comparison: == != > < >= <=

Example:

longCondition = close > open and volume > volume[1]

Accessing Bar Values

close[1]   // previous close
open[3]    // open from 3 bars ago

Arrays

myArray = array.new_float()
array.push(myArray, close)

Open TradingView Editor

Start coding in the Pine Script editor:
https://sancoqhub.com/go/tradingview

Premium Recommendation

More charts, more indicators, more alerts:
https://sancoqhub.com/go/tradingview

Conclusion

In this part you learned core structures of Pine Script. Next chapter will focus on indicator creation and plot functions.