modify_by {refer}

Modify an Object In Place

Description

Update the value pointed to by a ref object. If the new value is a function, the old values will be applied to the function and overwritten.

Usage

modify_by(x, value, ...)

Arguments

x

object of class "ref"

value

new value or function applied to the object at the referenced location

...

additional arguments passed to the function

Value

object of class "ref"

Examples

x <- 1:10
ref_to_x <- ref(x)

# Apply the square root function
modify_by(ref_to_x, sqrt)
print(x)

# Overwrite the original values
modify_by(ref_to_x, "hello world!")
print(x)