• Clojure

(doseq [e x]
  (f e))

• C++

std::for_each(x.begin(), x.end(), f);

• C++

for (auto e : x)
    f(e);

• C#

foreach(var e in x)
    f(e);

• Dart

x.forEach(f);

• Go

for e := range x {
	f(e)
}

• JS

let v = x.values();
let result = v.next();
while (!result.done) {
  f(result.value);
  result = v.next();
}

• JS

x.forEach(f);

• JS

for (const e of x) {
	f(e);
}

• Java

for(T e: x) {
  f(e);
}

• Pascal

for e in x do f(e);

• Perl

f($_) for @x;

• Python

list(map(lambda e: f(e), x))

• Python

for e in x:
    f(e)

• Python

for e in x: f(e)

• Ruby

x.each { |e| f(e) }

• Rust

for item in &x {
    f(item);
}