Let's talk programming languages

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Statically typed

Dynamically typed

interface Typing {
  static void foo() {
    int x = "foo";
  }

  static void main(String[] args) {
    System.out.println("hello");
  }
}

fun foo (x:int) (y:string) = x + y;

print "hello\n";

function foo() {
    var x = undefined;
    x();
}

console.log("hello");
foo();

def foo():
    x = 3 + [2, 3]

print "hello"
foo()

Statically typed

without type inference

Statically typed

with type inference

fun plusOne x = x + 1;

val two = plusOne 1;

int plusOne(int x) {
    return x + 1;
}

int two = plusOne(1);

Compiled

Interpreted

Java is a compiled object-oriented statically typed language

Standard ML is a functional statically typed language with type inference that is usually interpreted, but sometimes compiled.

JavaScript is an interpreted object-oriented dynamically typed language