Check if entry is not empty
Examples
not.empty("empty") # TRUE
#> [1] TRUE
not.empty('') # FALSE
#> [1] FALSE
not.empty(y<-NULL) # FALSE
#> [1] FALSE
if(not.empty('')) message("yes") # NULL
Check if entry is not empty
not.empty("empty") # TRUE
#> [1] TRUE
not.empty('') # FALSE
#> [1] FALSE
not.empty(y<-NULL) # FALSE
#> [1] FALSE
if(not.empty('')) message("yes") # NULL