How to avoid a bash script from failing when -e option is set?

Question

I have a bash script with -e option set, which fails the whole script on the very first error.

In the script, I am trying to do an ls on a

Answer 1

one solution would be testing the existence of the folder

function myLs() {
    LIST=""
    folder=$1
    [ "x$folder" = "x" ] && folder="."
    [ -d $folder ] && LIST=`ls $folder`
    echo $LIST
}

This way bash won't fail if $folder does not exist