yesno


A nodejs library for issuing and handling responses to yes/no questions

Supports Node 8+.

$3

``bash
npm install yesno
`

$3

`javascript
import yesno from 'yesno'; // modern es modules approach

// OR

const yesno = require('yesno'); // commonjs approach
`

$3


##### basic

`javascript
const ok = await yesno({
question: 'Are you sure you want to continue?'
});
``

yesno accepts yes, y , no, and n values by default.

All yesno responses are case insensitive.


##### Custom Yes/No values

`javascript
const ok = await yesno({
question: 'Dude, Is this groovy or what?',
yesValues: [ 'groovy' ],
noValues: [ 'or what' ]
});

console.log(ok ? 'Tubular.' : 'Aw, why you gotta be like that?');
`

Now the question only responds to groovy as yes and or what as no.


##### No default value

Sometimes you may want to ensure the user didn't accidentally accept a default.
You can disable the default response by passing null as the defaultValue parameter.

`javascript
const ok = await yesno({
question: 'Are you sure you want to 'rm-rf /' ?',
defaultValue: null
});
`


##### Handling invalid responses

By default, if the user enters a value that isn't recognized as an acceptable response, it will
print out a message like:

Invalid response.
Answer either yes : (yes, y)
Or no : (no, n)

and re-ask the question. If you want to change this behavior, you can set the invalid handler before asking your question:

`javascript
const ok = await yesno({
question: 'Ready to continue?',
invalid: function ({ question, defaultValue, yesValues, noValues }) {
process.stdout.write("\n Whoa. That was not a good answer. Well. No more tries for you.");
process.exit(1);
}
});
``