fns-and-scope.js

//////////////////PROBLEM 1////////////////////

var name = 'Tyler';
//Create a function called isTyler that accepts name as it's only parameter.
//If the argument you passed in is equal to 'Tyler', return true. If it's not, return false.

  //Code Here
function isTyler(name){
  return name == "Tyler";
}

//////////////////PROBLEM 2////////////////////


//Create a function called getName that uses prompt() to prompt the user for their name, then returns the name.


  //Code Here
function getName() {
  return prompt("Please enter your name");
}

//////////////////PROBLEM 3////////////////////



//Create a function called welcome that uses your getName function you created in the previous problem to get the users name,
//then alerts "Welcome, " plus whatever the users name is.

  //Code Here
function welcome(){
  alert("Welcome, " + getName());
}

//////////////////PROBLEM 4////////////////////




//What is the difference between arguments and parameters?

  //Answer Here
//An argument is the actual value, a parameter is a placeholder for an argument.

//////////////////PROBLEM 5////////////////////



//What are all the falsy values in JavaScript and how do you check if something is falsy?


  //Answer Here
// null, 0, NaN, undefined, false, and ''. Use if(value){return true;}else{return false;} // value being the something you're checking.



//////////////////PROBLEM 6////////////////////



//Create a function called myName that returns your name

  //Code Here
function myName() {
  return "Scott";
}


//Now save the function definition of myName into a new variable called newMyName

  //Code Here
var newMyName = myName;

//Now alert the result of invoking newMyName

alert(newMyName());


//////////////////PROBLEM 7////////////////////



//Create a function called outerFn which returns an anonymous function which returns your name.

  //Code Here
function outerFn(){
  return function () {
    return "Scott";
  }
}

//Now save the result of invoking outerFn into a variable called innerFn.

  //Code Here
var innerFn = outerFn();
//Now invoke innerFn.

innerFn();