Providing More Context To Your Expressions

To perform complex operations where you need to manange additional contextual information, you can define custom variables that can be used throughout your expressions. For this, a special function is provided: LET.

The LET function takes 2 arguments: a map expression which binds the desired variable name to its value, and the expression to evaluate.

All variables defined by let must be defined as a string key using the $ prefix.

LET(
    {
        "$myVariable": 1, 
        "$myVariable2": 2 
    },
    
    $myVariable + $myVariable2 + 1
    
)
// Output: 4