grapes-except-grapes: Try to evaluate an expressions and evaluate another...

In logger: A Lightweight, Modern and Flexible Logging Utility

Description

Try to evaluate an expressions and evaluate another expression on exception

Usage

try %except% except

Arguments

try	R expression
except	fallback R expression to be evaluated if try fails

Note

Suppress log messages in the except namespace if you don't want to throw a WARN log message on the exception branch.

Examples

everything %except% 42
everything <- '640kb'
everything %except% 42

Mean(1:10) %except% sum(1:10) / length(1:10)
Mean(1:10) %except% (sum(1:10) / length(1:10))
Mean(1:10) %except% MEAN(1:10) %except% mean(1:10)
Mean(1:10) %except% (MEAN(1:10) %except% mean(1:10))

logger documentation built on Oct. 19, 2021, 9:07 a.m.