• JS

for (let i = 1; i <= 100; i++) {
    let out = "";
    if (!(i % 3)) out += "Fizz";
    if (!(i % 5)) out += "Buzz";
    if (!out) out = i;
    console.log(out);
}

• C++

for (int n=1; n<=100; n++) {
        string out="";
        if (n%3==0) {
            out=out+"Fizz";
        }
        if (n%5==0) {
            out=out+"Buzz";
        }
        if (out=="") {
            out=out+std::to_string(n);
        }
        cout << out << "\n";
    }

• C++

for(int i = 1; i <= 100; i++)
{
    if((i % 15) == 0) std::cout << "FizzBuzz" << std::endl;
    else if((i % 5) == 0) std::cout << "Buzz" << std::endl;
    else if((i % 3) == 0) std::cout << "Fizz" << std::endl;
    else std::cout << i << std::endl;
}

• C#

string FizzBuzzOrNumber(int number) => number switch {
    var n when n % 15 == 0 => "FizzBuzz",
    var n when n % 3 == 0 => "Fizz",
    var n when n % 5 == 0 => "Buzz",
    var n => n.ToString()
};

for (var i = 1; i <= 100; i++)
{
    Console.WriteLine(FizzBuzzOrNumber(i));
}

• Dart

for (int i = 1; i <= 100; i++) {
  var s = StringBuffer();
  if (i % 3 == 0) s.write("Fizz");
  if (i % 5 == 0) s.write("Buzz");
  if (s.isEmpty) s.write(i);
  print(s);
}

• Elixir

defmodule FizzBuzz do
  def run do
    for n <- 1..100 do
      case { rem(n, 3) == 0, rem(n, 5) == 0 } do
        { true, true } -> IO.puts("FizzBuzz")
        { true, false } -> IO.puts("Fizz")
        { false, true } -> IO.puts("Buzz")
        _ -> IO.puts(to_string(n))
      end
    end
  end
end

FizzBuzz.run

• Fortran

  integer :: i
  logical :: fizz, buzz
  do i=1,100
     fizz = mod(i,3) == 0
     buzz = mod(i,5) == 0
     if (fizz) write (*,'(A)',advance="no") 'Fizz'
     if (buzz) write (*,'(A)',advance="no") 'Buzz'
     if (.not. fizz .and. .not. buzz) write (*,'(I0)',advance="no") i
     write (*,'(A)',advance="no") ', '
  end do
  write (*,'()')
end program

• Go

for n:=1; n<=100; n++ {
	    out:=""
	    if n%3==0 {
		    out=out+"Fizz"
	    }
	    if n%5==0 {
		    out=out+"Buzz"
	    }
	    if out=="" {
		    out=out+strconv.Itoa(n)
	    }
	    fmt.Println(out)
    }

• Java

for (int i = 1; i <= 100; i++){
	if (i % 15 == 0)
	  System.out.println ("FizzBuzz");
	else if (i % 3 == 0)
	  System.out.println ("Fizz");
	else if (i % 5 == 0)
	  System.out.println ("Buzz");
	else
	  System.out.println (i);
      }

• Lisp

(loop for i from 1 to 100
   do (print
       (cond ((zerop (mod i 3))
              (if (zerop (mod i 5)) "FizzBuzz" "Fizz"))
             ((zerop (mod i 5)) "Buzz")
             (t (format nil "~d" i)))))

• Lua

for n=1,100 do
 print(
  n%3==0
  and (n%5==0 and "FizzBuzz" or "Fizz")
  or (n%5==0 and "Buzz")
  or tostring(n)
 )
end

• Lua

n=1
while(n<=100) do
    out=""
    if(n%3==0) then
        out=out .. "Fizz"
    end
    if(n%5==0) then
        out=out .. "Buzz"
    end
    if(out=="") then
        out=out .. tostring(n)
    end
    print(out)
    n=n+1
end

• PHP

<?php
    for ($n=1; $n<=100; $n++) {
        $out="";
        if ($n%3==0) {
            $out=$out."Fizz";
        }
        if ($n%5==0) {
            $out=$out."Buzz";
        }
        if ($out=="") {
            $out=$out.strval($n);
        }
        echo ($out."\n");
    }
?>

• Pascal

program fizzbuzz;
{$APPTYPE CONSOLE}
{$R *.res}
uses
System.SysUtils;
var i: Integer;
begin
for i := 1 to 100 do
begin
if (i mod 3 = 0) and (i mod 5 = 0) then WriteLn(IntToStr(i) + ' = FizzBuzz')
else if (i mod 3 = 0) then WriteLn(IntToStr(i) + ' = Fizz')
else if (i mod 5 = 0) then WriteLn(IntToStr(i) + ' = Buzz')
else WriteLn(IntToStr(i));
end;
readln;
end.

• Pascal

for i := 1 to 100 do
begin
  Fizz := (i mod 3) = 0;
  Buzz := (i mod 5) = 0;
  if Fizz then write('Fizz');
  if Buzz then write('Buzz');
  if not (Fizz or Buzz) then write(i);
  write(' ');
end.

• Perl

for my $i ( 1 .. 100 ) {
    print $i % 3 ? '' : 'Fizz';
    print $i % 5 ? '' : 'Buzz';
    print $i % 3 && $i % 5 ? $i : '';
    print "\n";
}

• Python

for i in range(1,101):
    if i % 15 == 0:
        print("FizzBuzz")
    elif i % 3 == 0:
        print("Fizz")
    elif i % 5 == 0:
        print("Buzz")
    else:
        print(i)

• Python

for i in range(100, 1):
    if i % 5 == 0 and not i % 3 == 0:
        print(i, "Buzz");
    if i % 3 == 0 and not i % 5 == 0:
        print(i, "Fizz");
    if i % 3 == 0 and i % 5 == 0:
        print(i, "FizzBuzz");

• Python

for i in range(1, 100+1):
    out = ""
    if i % 3 == 0:
        out += "Fizz"
    if i % 5 == 0:
        out += "Buzz"
    print(out or i)

• Python

n=1
while(n<=100):
    out=""
    if(n%3==0):
        out=out+"Fizz"
    if(n%5==0):
        out=out+"Buzz"
    if(out==""):
        out=out+str(n)
    print(out)
    n=n+1

• Python

s, a, b = '', 'Fizz', 'Buzz'
for x in range(1, 101):
    if not x % 3: s = a
    if not x % 5: s = s + b
    print(s or x)
    s = ''

• Ruby

(1..100).each do |i|
  d3 = i % 3 == 0
  d5 = i % 5 == 0

  if d3 && d5
    puts "FizzBuzz"
  elsif d3
    puts "Fizz"
  elsif d5
    puts "Buzz"
  else
    puts "#{i}"
  end
end

• Rust

for i in 1..101 {
    match i {
        i if (i % 15) == 0 => println!("FizzBuzz"),
        i if (i % 3) == 0 => println!("Fizz"),
        i if (i % 5) == 0 => println!("Buzz"),
        _ => println!("{i}"),
    }
}

• Smalltalk

1 to: 100 do: 
	[:ea | (ea isDivisibleBy: 15)
		ifTrue: [Transcript showln: 'FizzBuzz']
		ifFalse: [(ea isDivisibleBy: 5)
				ifTrue: [Transcript showln: 'Buzz']
				ifFalse: [(ea isDivisibleBy: 3)
						ifTrue: [Transcript showln: 'Fizz']
						ifFalse: [Transcript showln: ea]]]].