function as object javascript code example

Example 1: function inside object javascript

var obj = {
  func: function(a, b) {
    return a * b;
  }
};

obj.func(3, 6); // 18

Example 2: how to define function in object javascript

// Functions that are defined inside objects are called methods.
let example = {
  calc: function (num1, num2) {
    return num1 + num2;
  },
};

// Calling the method
example.calc(1,2)

Example 3: js function

function myfunction() {
  console.log("function");
};

myfunction() //Should say "function" in the console.

function calculate(x, y, op) {
  var answer;
  if ( op = "add" ) {
    answer = x + y;
  };
  else if ( op = "sub" ) {
    answer = x - y;
  };
  else if ( op = "multi" ) {
    answer = x * y;
  };
  else if ( op = "divide" ) {
    answer = x / y;
  };
  else {
    answer = "Error";
  };
  return answer;
};

console.log(calculate(15, 3, "divide")); //Should say 5 in console.
//I hope I helped!