code

Filling it in one go

,code

(,code "print(1)")

leave the language empty and it is detected for you; pick one from the dropdown to insist

Inside the block

↵ makes a new line of code rather than a new row

⌘↵ leaves the block and starts a fresh row underneath

pasting always arrives as plain text

when the row is folded the block shrinks to a single chip you can click open

Not the same as a code cell

this marker displays code; it never runs it

a line that begins with a backtick is the one that computes — see cells

example

function greet(name) {
  return "hello " + name;
}