How to write multilines to a file with fish?

Question

In bash, I can do:

cat >a.txt <<EOF
line 1111
line 2222
EOF

But this is invalid syntax when using in fish. What's the correct way to do it?

Answer 1

FWIW in the console/terminal I have always used:

cat > a.txt
line 1111
line 2222
Ctrl+D

It worked both in Bash and Fish.