Creates a free form text input that does not print the characters normally printed by the input prompt. The characters are substituted for a substitute string you can provide. If the substitute parameter is a boolean false no substitute characters will be printed.

The substitute string if longer than 1 character can be called a pattern and will also be printed in that pattern. So if you have a pattern of <> and that length of the text i 5 the substitution will look like <><><.

Controls:

• Ctrl+c will have the question canceled and return undefined.
• Ctrl+d will exit the whole script no questions asked with a Deno.exit().
• Up arrow or Home key will move the cursor to the start of the prompt text.
• Down arrow or End key will move the cursor to the end of the prompt text.
• Left arrow will move the cursor one step to the left once if able.
• Right arrow will move the cursor one step to the right once if able.
• Enter will return the test inputted or the provided default value.

Requires --unstable until Deno version 1.27.