How can I adjust the space between vector elements using the print() function?

Question

I wish to print the following text,

x = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

with the contents of the set {a,...,j} being an integer vector.

x = 1:10
print(c("x = {", x, "}"), quote=FALSE)
#[1] x = { 1     2     3     4     5     6     7     8     9     10    } 

x = 1:10
noquote(paste(c("x = {",x,"}"),sep=","))
#[1] x = { 1     2     3     4     5     6     7     8     9     10    }   

Both of these have the same output and the same two issues-- too many spaces and no commas between vector entries. I'm aware this is a very beginner question but any tips?

Answer 1

print is not designed to paste element together, use paste instead:

paste0("x = {", paste(x, collapse = ", "), "}")
#[1] "x = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}"

A tidyverse alternative:

library(stringr)
library(glue)
glue("x = {{{str_flatten_comma(x)}}}")
#[1] "x = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}"