confirmed-bughelp wantedreadline
描述
- Version: v8.0.0-rc.0
- Platform: Windows 4 x64
- Subsystem: readline
I am not sure if this is a bug or a feature.
Consider this simple echo interface:
'use strict';
const readline = require('readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
rl.on('line', (line) => {
console.log(line);
});
It does not use rl.prompt() anywhere and with a common input there will be no default prompt:
However, if a user press DELETE, BACKSPACE or UP button, default prompt immediately and somehow unexpectedly appears shifting the whole line:
This can be prevented by setting the prompt option into the empty line. However, I am not sure if this opt-out rule is an intended behavior.