ExprBuilder: Frame expression builder
In asardaes/dtplyr: Bindings to use dplyr's verbs with data.table

Build an expression that will be used inside a data.table::data.table's frame.

1	ExprBuilder

An object of class R6ClassGenerator of length 24.

where: Clause for subsetting. The i inside the data.table's frame.
select: Clause for selectin/computing on columns. The j inside the data.table's frame.
expr: The final expression that can be evaluated with base::eval() or rlang::eval_bare().

initialize(DT, caller_env, after): Constructor that receives a data.table::data.table in DT and the caller's environment in caller_env.Chains can be built by passing an existing ExprBuilder instance in DT.
print(...): Prints the built expr.