Privacy

Table of Content

Functions

Functions are reusable blocks of code designed to perform specific tasks. They improve code organization, reduce repetition, and enhance maintainability.

This Privacy Policy describes how Alevio ("we," "our," or "us"), founded and led by Felix Danyluk (CEO and Founder), collects, uses, and discloses your information when you use our application, website, and services (collectively, the "Service").

Important:

Alevio is designed as a privacy-first application. All your personal data is stored locally on your device and is not transferred to our servers unless you explicitly activate cloud functions.

1. Information We Collect

Alevio operates primarily as a local application.
The information stored includes:

Personal information: name and preferences (stored locally only).
Usage data: daily responses and insights (stored locally only).
Device information: app preferences and settings (stored locally only).
AI Chat data: when using AI features, conversation history is stored locally on your device.
Image data: when using vision features, uploaded images are processed locally and may be temporarily stored for AI analysis.
Generated images: DALL-E generated images are saved locally on your device for display purposes.
Usage limits: daily usage tracking for cloud models and image generation is stored locally to enforce fair usage policies.

2. How We Use Your Information

We use the information we collect to:

Provide and maintain our Service
Improve and personalize your experience
Communicate with you about updates and features
Ensure the security and integrity of our Service

3. Data Storage and Security

Your data is stored locally on your device using secure, industry-standard encryption. We do not have access to your personal information unless you explicitly choose to share it through cloud features.

4. Third-Party Services

Alevio may integrate with third-party AI services for enhanced functionality. When using these features, only the necessary data is transmitted to provide the service. We carefully select partners who share our commitment to privacy.

Cloud Services: When you use cloud-based AI models (such as GPT-4o, Claude, or other cloud providers), your messages and uploaded images are sent to these services for processing. We use secure API connections and do not store your data on our servers.
Image Generation: When using DALL-E image generation, your text prompts are sent to OpenAI's servers to generate images. Generated images are returned to your device and stored locally.
Web Search: When using web search features, your search queries are sent to our search partners to retrieve relevant information. Search results are processed and returned to your device.
Apple Shortcuts: When using Apple Shortcuts integration, your device's Shortcuts app may access Alevio through URL schemes. This integration is handled entirely by your device's operating system.

5. Your Rights

You have the right to:

Access your personal data stored on your device
Delete your data at any time through the app settings
Opt out of cloud features and keep all data local
Contact us with any privacy concerns

6. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date.

7. Contact Us

If you have any questions about this Privacy Policy or our privacy practices, please contact us at:

privacy.alevio@gmail.com

Declaring a Function

A function is defined using the function keyword, followed by a name, parentheses (), and a block of code {}.

function greet() {
    console.log("Hello, welcome to JavaScript!");
  }

To execute a function, it must be called by its name with parentheses:

greet(); // Outputs: Hello, welcome to JavaScript!

Function Parameters and Arguments

Functions can accept parameters (input values) and use them within their block.

function greetUser(name) {
    console.log("Hello, " + name + "!");
  }
  
greetUser("Alice"); // Outputs: Hello, Alice!

Parameters are placeholders in the function definition.
Arguments are actual values passed to the function when called.

A function can have multiple parameters:

function addNumbers(a, b) {
    console.log(a + b);
  }
  
addNumbers(5, 10); // Outputs: 15

Return Statement

A function can return a value using the return keyword.

function multiply(x, y) {
    return x * y;
  }
  
let result = multiply(4, 5);
console.log(result); // Outputs: 20

Once return is executed, the function stops running.
Returned values can be stored in variables for later use.

Function Expressions

Functions can be stored in variables as expressions.

const square = function(num) {
    return num * num;
  };
  
console.log(square(6)); // Outputs: 36

Function expressions do not have a name (anonymous functions).
The function is called using the variable name.

Arrow Functions (ES6)

Arrow functions provide a shorter syntax for writing functions.

const multiply = (a, b) => a * b;
console.log(multiply(3, 4)); // Outputs: 12

If the function has only one statement, {} and return can be omitted.
If there is only one parameter, () can be omitted:

const greet = name => console.log("Hello, " + name);
greet("John"); // Outputs: Hello, John

Default Parameters

Functions can have default parameter values that apply when no argument is provided.

function greet(name = "Guest") {
    console.log("Hello, " + name);
}
  
greet(); // Outputs: Hello, Guest
greet("Alice"); // Outputs: Hello, Alice

Rest Parameters (`...`)

The rest parameter syntax allows a function to accept multiple arguments as an array.

function sum(...numbers) {
  let total = 0;
    for (let num of numbers) {
        total += num;
    }
    return total;
  }
  
console.log(sum(1, 2, 3, 4, 5)); // Outputs: 15

The ...numbers parameter gathers all arguments into an array.
Useful when the number of arguments is unknown.

Callback Functions

A callback is a function passed as an argument to another function and executed later.

function processUser(name, callback) {
    console.log("Processing user: " + name);
    callback();
  }
  
function done() {
      console.log("User processed successfully.");
  }

processUser("Alice", done);

processUser calls done after printing a message.
Callbacks enable asynchronous programming and event handling.

Immediately Invoked Function Expressions (IIFE)

An IIFE runs immediately after it is defined.

(function() {
    console.log("This function runs immediately!");
})();

Wrapped in parentheses to execute instantly.
Avoids polluting the global scope.

Conclusion

Functions are a fundamental part of JavaScript, allowing code reuse and modularity. The next section will explore objects and arrays, which are essential for organizing and managing data.