Enums in Mongoose – onlinecode

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2 years ago

Enums in Mongoose – onlinecode

In this post, we will give you information about Enums in Mongoose – onlinecode. Here we will give you detail about Enums in Mongoose – onlinecode And how to use it also give you a demo for it if it is necessary

Mongoose String and Number types have an enum validator.
The enum validator is an array that will check if the value given is an item in the array.
If the value is not in the array, Mongoose will throw a ValidationError when you try to save().

const testSchema = new mongoose.Schema({
  status: {
    type: String,
    enum: ['valid', 'invalid']
  }
})

const Test = mongoose.model('Test', testSchema);

await Test.create({ name: 'not a status' }); // throws validation error
await Test.create({ name: 'valid' }); // works

Typescript enums

You can also use Typescript Enums.
At runtime, TypeScript enums are just POJOs where the object’s values are the enum values.
When you set enum to an object, Mongoose will run Object.values() on the object to get the desired values.

enum Status {
  Valid,
  Invalid
};

const testSchema = new mongoose.Schema({
  rating: {
    type: Number,
    enum: Rating
  xw}
});

const Test = mongoose.model('Test', testSchema);

await Test.create({ name: 'invalid' }); // throws validation error
await Test.create({ name: 'Valid' }); // works

A mongoose is a small, carnivorous mammal that is found in Africa, Asia, and southern Europe. They are known for their ability to kill venomous snakes, and they have been used for centuries to control snake populations. Mongooses are also popular pets, but they can be difficult to care for and are not recommended for everyone.

Here are some of the pros and cons of owning a mongoose:

Pros:

Mongooses are intelligent and can be trained to do tricks.
They are relatively small and easy to care for.
They can be effective at controlling snake populations.

Cons:

Mongooses can be aggressive and unpredictable.
They are not legal to own in some places.
They can carry diseases, such as rabies.

If you are considering getting a mongoose as a pet, it is important to do your research and make sure that you are prepared to provide the proper care. Mongooses are not for everyone, but they can make great companions for the right people.

Here are some additional facts about mongooses:

They are about the size of a cat, with long bodies and tails.
They have sharp claws and teeth, which they use to catch and kill prey.
They are active during the day and night.
They eat a variety of foods, including snakes, rodents, insects, and fruit.
Mongooses live in a variety of habitats, including forests, grasslands, and deserts.
They are solitary animals, but they will sometimes gather in groups to hunt.
Mongooses are monogamous, and they mate for life.
Females give birth to litters of 2-4 young.
Mongooses reach sexual maturity at about 6 months old.
They have a lifespan of about 10 years.