#function #parameter #argument

functionsVeryBasics.js

//just my own thoughts about it. Actually I've had similar issues before.
function confusion() {
    var x = 5; // hard-coded assignment
    console.log(x);
}

confusion(); // call a function with hard-coded 5 value

function dontBeConfused(x // hey I'm a parameter, that is a placeholder for a future value/argument ) {
  // putting x parameter this way is pretty mutch the same as creating a variable inside the function 
  // in the snippet above, but it provides more ... flexability. 
  // In this case, later you can call/invoke a function with whatever argument you want, not only with 5.
    console.log(x);
}

dontBeConfused(5 // at this point,it is not a parameter,it is an argument - a number 5);