A New Programming Language for AI Developers
Published: 2024-01-08 13:15:21

Mojo is a Programming Language Designed by Chris Lattner, the creator of the Swift programming language and LLVM Compiler Infrastructure, Mojo presents a novel solution for Python’s speed constraints. Despite its popularity, Python often lags in performance, making languages like C and C++ preferable for high-speed, high-performance tasks. In response, Mojo was born to integrate Python’s usability with C’s performance.

{% youtube wY2ojfJABLA %}

But what does this mean for the average web developer? Mojo has an astonishing 35,000x speed advantage over Python, substantially outpacing competitors like PyPy, Scala, and C++.

Here’s a benchmark test result of Mojo versus other languages, running the Mandelbrot algorithm on an AWS r7iz.metal-16xl instance:


![A benchmark screenshot of Mojo vs. other languages from the Modular website](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/gewqie017kikcmgjpuxi.png)

This leap in AI programming opens up new possibilities for developing high-performance, AI-powered web applications without sacrificing the familiarity of Python’s syntax and extensive libraries.

## Mojo lang: Designed for the future of AI
A significant selling point for Mojo is its compatibility with AI hardware. It leverages multilevel intermediate representation (MLIR) to scale various hardware types, including GPUs running CUDA and similar hardware, without adding complexity.

Mojo’s design also ensures portability across several hardware platforms and specialized accelerators. This makes it a great choice for developing applications that need to run on a variety of devices.

One of the reasons Python is so beloved in the development community is its robust ecosystem, and Mojo takes this legacy forward. As a Python superset, it offers smooth access to Python libraries like NumPy. This means you can jump into AI development using tools you’re already familiar with.

To start your journey with Mojo, head over to the Mojo playground, an interactive platform provided by Modular that allows developers to run Mojo code. As of May 2023, Mojo is still under development, but you can experience its functionalities in this playground.

## Writing your first Mojo code
Mojo’s syntax is heavily influenced by Python. For instance, a “Hello, World!” program in Mojo looks exactly like one in Python:

```python 
print("Hello Mojo!")
```

## Variables in Mojo
Mojo supports let and var declarations, which introduce a new scoped runtime value. let is used to declare immutable variables, while var is for mutable ones. Here is a basic example of how you can use these declarations:

```python 
def addNumbers(num1, num2):
    let sum = num1
    if sum != num2:
        let newNum = num2
        print(newNum)
addNumbers(2, 3)
```
With let and var declarations, you can also specify the variable type. Here’s an example with several data types:

```python 
def guessLuckyNumber(guess) -> Bool:
    let luckyNumber: Int = 37
    var result: StringLiteral = ""
    if guess == luckyNumber:
        result = "You guessed right!"
        print(result)
        return True
    else:
        result = "You guessed wrong!"
        print(result)
        return False
guessLuckyNumber(37)
```

## Using struct types
In Mojo, you can build safe high-level abstractions on top of low-level data layout controls with the struct type. In programming, a struct is a data type that allows for the combination of different kinds of data items, but which can be manipulated as a single unit.

In the Mojo programming language, struct types are a bit similar to classes in other object-oriented languages. They can have methods and properties, but unlike classes, structs in Mojo are statically bound at compile time, and they are directly inserted or “inlined” into their container without needing a separate memory reference, or “indirection.”

Here’s a simple definition of a struct:
```python
struct MyPair:
    var first: Int
    var second: Int
    fn __init__(inout self, first: Int, second: Int):
        self.first = first
        self.second = second
```

## Conclusion
Mojo promises a new era of efficiency and robustness for AI developers. By combining the simplicity of Python with C’s high-performance capabilities, Mojo aims to democratize AI programming and simplify the development process.

As we eagerly anticipate Mojo’s public launch, it’s the perfect time to explore its possibilities through the Mojo playground and kickstart your journey into the future of AI development.

Article Inspired from: https://www.epicprogrammer.org/mojo-programming-language-for-ai-developers/