Discussion on: JavaScript: Higher-order Functions Part-1

Hi, Kiran.

I must confess that your article raises some questions regarding the example posted under item "3. Function return another function". I don't see the point in declaring arguments "fun1" and "fun2" for function "calc" if there is no further reference to any of them inside the declaration. While I'm no expert in Java Script, my personal experience would indicate that the code for function "calc" should be something like:

function calc(x,y, fun1, fun2){
    return function() {
        console.log(`${x} + ${y} = ${fun1(x, y)}`);
        console.log(`${x} - ${y} = ${fun2(x, y)}`);
    }
}

Again, I am no expert in JavaScript, my point is that the passing of arguments to a function should be recognized -utilized, employed- inside the definition of the function; as shown, in your example under "3. Function return another function", I cannot relate the arguments passed to the result obtained.

Yours is an excellent article, Kiran, and my only intention is to express my very personal doubts on the matter. Thank you.