Shorthand Syntax Expression | Fat Arrow Notation

Shorthand Syntax Expression (Shortened Way of Writing): Dart also supports shorthand syntax expressions, making your code more compact and readable. One common example is the null-aware operator (??), which provides a concise way to assign a default value if a variable is null.

Example:
```
 // Long way
 String name = getName();
 if (name == null) {
     name = 'Guest';
 }

 // Shorthand way using null-aware operator
 String name = getName() ?? 'Guest';
```

Fat Arrow Notation (=>): Fat arrow notation in Dart is a succinct way to define short functions. It's especially handy for one-liners.

Example:

 // Traditional function
 int multiply(int a, int b) {
     return a * b;
 }

 // Arrow function
 int multiply(int a, int b) => a * b;

Arrow Functions: In Dart, arrow functions are similar to fat arrow notation. They are concise ways to write functions, especially when the function body is a single expression.

Example:
```
 // Traditional function
 String greet(String name) {
     return 'Hello, $name!';
 }

 // Arrow function
 String greet(String name) => 'Hello, $name!';
```

In Dart, these features enhance code readability and reduce boilerplate, making your codebase more elegant. Whether you're using shorthand syntax expressions or leveraging the simplicity of arrow functions, Dart provides concise ways to express your logic effectively.

Shorthand Syntax Expression | Fat Arrow Notation | Arrow Functions