Lesson_4

Practical Task #8

by Pavel_FD2

HTML

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  


  <script src="./main.js"></script>
</body>
</html>

JavaScript

function pow(x, y) {
  let arg = 1;
  let frase =  x + ' ^ ' + y + ' = ';  
    if (y == 1) {
      return frase + x;
    } 
    else if (y < 0) {    
    		for (var i = y; i < 0; i++) {
      			arg /= x;
    	}
      console.log(frase+arg);
    }
    else {
    for (let i=0; i<y; i++){
         arg *= x;
      }
      console.log(frase+arg);
  }
}

const calculate = function(a) {
    return function(sign) {
       return function(b) {
          switch(sign) {
          case '+': console.log(a+' + '+ b + ' = ' + (a+b));
          break;
          case '-': console.log(a+' - '+ b + ' = ' + (a-b));
          break;
          case '*': console.log(a+' * '+ b + ' = ' + (a*b));
          break;
          case '/': if(b===0){console.log(a+' / '+ b + ' = ' + 'Ошибка (на ноль делить нельзя)')} 
                    else console.log(a+' / '+ b + ' = ' + (a/b));
          break;
        };
        };                   
      };
    };
    
console.log(pow(23,9));
console.log(calculate(6)('/')(3));