var str = "Я строка всем хороша";
var fl = Math.PI;
var int = 2345643054;
var obj = {
  myType: "I'am object",
  value: 25
};

console.log(obj.value);

console.log(typeof(str) + "\n" + typeof(fl) + "\n" + typeof(int) + "\n" + typeof(obj));

console.log("%s но число ПИ = %.2f , а не как %d. Объект сам по себе - %O", str,fl,int,obj );

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