Typestead: code in your pocket TypesteadCode in your pocketTypesteadCode in your pocketTypesteadCode in your pocketTypesteadCode in your pocket TypesteadCode in your pocketTypesteadCode in your pocketTypesteadCode in your pocketTypesteadCode in your pocket

def average(marks):
    # empty list? say so
    if not marks:
        return 0
    return sum(marks) / len(marks)

print(average([72, 88, 95]))

const todo = ["read", "code", "sleep"];

function next(list) {
  // take the first job
  return list.shift() ?? "nothing left";
}
console.log(next(todo));

public class Hello {
    @Override
    public String toString() {
        return "Hi from Java";
    }
    public static void main(String[] args) {
        System.out.println(new Hello());
    }
}

public record Grade(string Name, int Score);

public static class Report
{
    // highest score wins
    public static Grade Top(List<Grade> all)
        => all.MaxBy(g => g.Score);
}

#include <vector>
#include <iostream>

int main() {
    std::vector<int> v{3, 1, 2};
    /* print every item */
    for (auto x : v) std::cout << x << "\n";
    return 0;
}

interface Task {
  title: string;
  done: boolean;
}

export function left(tasks: Task[]): number {
  return tasks.filter(t => !t.done).length;
}

-- top students this term
SELECT name, AVG(score) AS avg_score
FROM results
WHERE term = 'T4'
GROUP BY name
ORDER BY avg_score DESC
LIMIT 5;

#include <stdio.h>

int main(void) {
    int total = 0;
    for (int i = 1; i <= 10; i++)
        total += i;   /* 1 + 2 + ... + 10 */
    printf("%d\n", total);
    return 0;
}

package main

import "fmt"

func double(n int) int {
	return n * 2
}

func main() {
	fmt.Println(double(21))
}

<?php
// greet each friend
$friends = ["Ana", "Sam"];
foreach ($friends as $name) {
    echo "Hi, $name!\n";
}

fn longest<'a>(a: &'a str, b: &'a str) -> &'a str {
    // return the longer one
    if a.len() >= b.len() { a } else { b }
}

fn main() {
    println!("{}", longest("pocket", "editor"));
}

data class Note(val title: String, val words: Int)

fun longest(notes: List<Note>): Note? =
    notes.maxByOrNull { it.words }

fun main() {
    println(longest(listOf(Note("a", 3))))
}

struct Timer {
    var seconds: Int
    func label() -> String {
        // 90 -> "1:30"
        return "\(seconds / 60):\(seconds % 60)"
    }
}
print(Timer(seconds: 90).label())

# marks from the last quiz
marks <- c(72, 88, 95, 61)

summary_stats <- function(x) {
  c(mean = mean(x), top = max(x))
}
print(summary_stats(marks))

=begin
A tiny shopping list
=end
class List
  def initialize
    @items = []
  end
  def add(item) = @items << item
end

#!/bin/bash
# back up every .md file
for f in *.md; do
  if [ -s "$f" ]; then
    cp "$f" "backup/$f"
  fi
done

# list big files
$limit = 10MB
Get-ChildItem -Recurse | Where-Object {
    $_.Length -gt $limit
}
$note = @"
Done checking.
"@

class Score {
  final String name;
  final int points;
  Score(this.name, this.points);
}

void main() {
  print(Score('Ana', 42).points);
}

object Main {
  // sum of squares
  def squares(n: Int): Int =
    (1 to n).map(x => x * x).sum

  def main(args: Array[String]): Unit =
    println(squares(4))
}

% rotate a small matrix
A = [1 2; 3 4];
B = A';
label = 'transposed';
disp(label)
disp(B)

' total a column in Excel
Sub AddUp()
    Dim total As Long
    For Each c In Range("A1:A10")
        If c.Value > 0 Then total = total + c.Value
    Next
    MsgBox total
End Sub

use strict;
my @words = qw(pocket code editor);

=pod
Print each word.
=cut

print "$_\n" foreach @words;

-- count the vowels
local function vowels(s)
  local n = 0
  for c in s:gmatch("[aeiou]") do
    n = n + 1
  end
  return n
end
print(vowels("typestead"))

* list open orders
REPORT zorders.
DATA lt_orders TYPE TABLE OF vbak.
SELECT * FROM vbak INTO TABLE lt_orders
  WHERE gbstk = 'A'.
LOOP AT lt_orders INTO DATA(ls_o).
  WRITE / ls_o-vbeln. " order number
ENDLOOP.

section .text
global _start
_start:
    mov rax, 60      ; exit
    xor rdi, rdi     ; code 0
    syscall