what is model schema document in mongo db
var personSchema = new Schema({ name: { type: String, default: 'anonymous' }, age: { type: Number, min: 18, index: true }, bio: { type: String, match: /[a-zA-Z ]/ }, date: { type: Date, default: Date.now }, }); var personModel = mongoose.model('Person', personSchema); var comment1 = new personModel({ name: 'Witkor', age: '29', bio: 'Description', }); comment1.save(function (err, comment) { if (err) console.log(err); else console.log('fallowing comment was saved:', comment); });