%<d-% {pryr}

R Documentation

Create an delayed binding.

Description

Infix form of delayedAssign which creates an delayed or lazy binding, which only evaluates the expression the first time it is used.

Usage

x %<d-% value

Arguments

x	unquoted expression naming variable to create
value	unquoted expression to evaluate the first time name is accessed

Examples

Run examples

x %<d-% (a + b)
a <- 10
b <- 100
x

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