[JavaScript] practice 1

JavaScript practice

function print(str, result){
  console.log(`${str} => ${result}`);
}
​
// other method
function print2(str, a, b){
  const result = calculater[str](a, b);
  console.log(`${str} => ${result}`);
}
​
const calculater = {
  plus: function(x, y){
    return x + y;
  },
  minus: function(x , y){
    return x - y;
  },
  multiple: function(x, y){
    return x * y;
  },
  divide: function(x, y){
    return x / y;
  },
  pow: function(x, y){
    return x ** y;
  }
}
​
console.log("let's calculate 4 and 2 :");
​
print('plus', calculater.plus(4, 2));
print('minus', calculater.minus(4, 2));
print('multiple', calculater.multiple(4, 2));
print('divide', calculater.divide(4, 2));
print('pow', calculater.pow(4, 2));
​
// other method
console.log('\nthis is the result of print2');
​
print2('plus', 4, 2);
print2('minus', 4, 2);
print2('multiple', 4, 2);
print2('divide', 4, 2);
print2('pow', 4, 2);
​
/*
============================================
let's calculate 4 and 2 :
plus => 6
minus => 2
multiple => 8
divide => 2
pow => 16
​
this is the result of print2
plus => 6
minus => 2
multiple => 8
divide => 2
pow => 16
*/