Programming Languages

There are many programming languages. They pretty much all do the same thing, but they have different syntax. Each languange promises to solve a different problem, but they all solve the same problem.

The biggest differentiator between language is not the language itself, but the libraries that are available for that language. The libraries are what make the language useful.

Apple likes to say that Swift is the fastest growing programming language. Google promotes Go as the fastest growing programming language. Android developers use Java and Kotlin. Web developers use JavaScript, Python, Ruby, PHP, and C#.

All languages perform the same basic operations. They all have variables, loops, conditionals, functions, and classes. They all have the same basic data types: numbers, strings, booleans, arrays, and objects. They all have the same basic operators: +, -, *, /, %, =, ==, !=, <, >, <=, >=, &&, ||, !, +=, -=, *=, /=, %=.

Choosing a language to learn is more about choosing what platform you want to code for and what libraries you want to use. If you want to code for iOS, you'll need to learn Swift. If you want to code for Android, you'll need to learn Java or Kotlin. If you want to code for the web, you'll need to learn JavaScript, Python, Ruby, PHP, or C#. If you want to code for Windows, you'll need to learn C#.

Just for fun, here's the list of string variable definitions in various programming languages. They all do the same thing, but they all look different due to the syntax of the language:

Python:
```
myString = "Hello World"
```
JavaScript:
```
var myString = "Hello World";
```
Java:
```
String myString = "Hello World";
```
C#:
```
string myString = "Hello World";
```
C++:
```
std::string myString = "Hello World";
```
Ruby:
```
myString = "Hello World"
```
PHP:
```
$myString = "Hello World";
```
Swift:
```
var myString = "Hello World"
```
Kotlin:
```
val myString = "Hello World"
```
Go:
```
var myString string = "Hello World"
```
Rust:
```
let myString = "Hello World";
```
TypeScript:
```
let myString: string = "Hello World";
```