Translating filter_all(any vars()) to base R

I have a dataframe with various numbers. What I want, is to subset rows using all column values.

One could use dplyr to write the following code:

library(dplyr)

set.seed(1)

df <- data.frame (matrix (round (runif(500, 0, 1), digits = 1), 10, 5))

dfn <- df |> dplyr::filter_all (dplyr::any_vars (grepl (0.5,.))) 

Does anyone know what the base R version of this code would be? Any help is very much appreciated.

>Solution :

One possibility:

has_0.5 <- apply(df, 1, function(x) any(grepl(0.5, x)))
df[has_0.5, ]