# hash()

The hash function secures data by converting it into irreversible hashes, crucial for encryption, digital signatures, and password security. Its versatility is key in fortifying applications against unauthorized access, playing a central role in data protection.

> Here is an example of encrypting a password:

```typescript
import { createBackendFunction, data, utils } from "@magicjs.dev/backend";

export default createBackendFunction(async function (name, username, password) {
    const dbCollection = data('collectionName');

    await dbCollection.insertOne({
        name,
        username,
        password: utils.hash(password) // Encrypting password
    });
});

```

[Click here to refer GitHub.](https://github.com/skyslit/magicjs.dev/blob/main/packages/backend/src/utils.ts#L12)


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