REPL

Getting Started

Working with notch from the terminal

Install Notch first

See the install page for the one-line install on macOS, Linux, and Windows. Once installed, notch is on your PATH.

Launch the REPL

notch

You should see:

notch >

First script

Type an expression and press Enter:

notch > 1 + 1
2
notch > print('hello')
hello
notch > [1, 2, 3].size()
3

Multi-line expressions

When Notch needs more input to complete an expression, it shows a continuation prompt:

notch > if true
      >   print('foo')
      > else
      >   print('bar')
      > end
foo

Continuation kicks in when the line parser sees an unmatched if or for keyword and waits for the matching end.

See also