function Person(name) {
  this.name = name;
}

Person.prototype.sayHello = function() {
  return `Hello, ${this.name}!`;
};

const person = new Person('John');
console.log(person.sayHello());

SELECT imie FROM mieszkancy WHERE imie LIKE 'o_%_a';

$zmienna1 = 15;
$zmienna2 = "15";
$zmienna3 = (string) $zmienna1;

<form>
    <textarea rows="3" cols="30"></textarea><br>
    <input type="checkbox"> Opcja1<br>
    <input type="checkbox"> Opcja2
</form>

* {
    font-family: Tahoma;
    color: Teal;
}

class MojaKlasa
{
    private static int licznik;
    ...

var x = parseInt(a);