readr::write_delim() How to avoid quotation marks?

[budugulo]

library(tidyverse)
library(readr)

# Toy data
df <- structure(list(all = c("000300000000           332686630         5654         0.50000", 
                       "000300000000           3326866300000000015654         0.50000"
)), class = c("tbl_df", "tbl", "data.frame"), row.names = c(NA, 
                                                            -2L))

# Write
write_delim(df, "toy.txt", delim = " ", col_names = FALSE)

When I use the above code to write a text file, each line gets surrounded by quotation marks. How can I get rid of them(")?

"000300000000           332686630         5654         0.50000"
"000300000000           3326866300000000015654         0.50000"
"000300000000           332686630         5654         0.50000"
"000300000000           3326866300000000015654         0.50000"

[veronix]

I'm not sure of the actual reason, but it works correctly if you get rid of the space in between " " for the delimeter setting, making it empty, like so:

write_delim(df, "toy.txt", delim = "", col_names = FALSE)

[budugulo]

Many thanks! It works!