JSFiddle - React, Tailwind, and code Playground

by Dmitry Kostenko

JavaScript

var x = Number(prompt("Введите x",1)),
  	 operation = prompt("Введите операцию", '-'),
		 y = Number(prompt("Введите y",1));

function calc( x, y, operation) {

	var	result;
      
	if (operation === "+") {
		result = x + y;
	} else if (operation === "-") {
		result = x - y;
	} else if (operation === "*") {
		result = x * y;
	} else if (operation === "/") {
		result = x / y;
	} 
  return result;
};

alert(calc( x, y, operation));