var spellcheck = require('nodehun-sentences');
spellcheck(nodehunInstance, textToCheck, function(err, typos) {
    // NOTE: `err` does NOT contain whether typos was found -
    // it returns any actual *errors* (not being passed a
    // valid instance of nodehun, for instance)
    if (err) {
        throw err;
    }

    // `typos` is an array of all typos, each one an object containing:
    //   - `word`: the word which was concidered a typo (string)
    //   - `suggestions`: list of suggestions (array of strings)
    //   - `positions`: list of positions where the typo was found (array of objects)
    typos.forEach(function(typo) {
        console.log('"' + typo.word + '" is not a valid word');
        console.log('found ' + typo.positions.length + ' occurences')
    });

    // Each entry in `typo.positions` contains the following keys:
    //   - `from`: The start offset for the typo within the text (integer)
    //   - `to`: The end offset for the typo within the text (integer)
    //   - `length`: Word length (integer)
    textToCheck.substring(typo[0].from, typo[0].to) === typo[0].word;
});

var fs = require('fs');
var spellcheck = require('nodehun-sentences');
var nodehun = require('nodehun');
var hunspell = new nodehun(
    fs.readFileSync('path/to/dictionary.aff'),
    fs.readFileSync('path/to/dictionary.dic')
);

var text = 'This is some text we want to ceck for typos';

spellcheck(hunspell, text, function(err, typos) {
    if (err) {
        throw err;
    }

    console.log(typos);

    typos == [{
        word: 'ceck',
        suggestions: [
            'check',
            'neck',
            'deck',
            'peck'
            // ...
        ],
        positions: [{
            from: 29,
            to: 33,
            length: 4
        }]
    }];
});