Javascript Beginner Project Stuck in Returning Implicit return

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#1

**Hello guys I’m a newbie going I’m stuck on the Sleep Debt Calculator project after step 4 unable to call the function using implicit return **

Here is the link to the project
https://www.codecademy.com/paths/web-development/tracks/getting-started-with-javascript/modules/learn-javascript-functions/projects/sleep-debt-calculator

Snapshot code.

const getSleepHours = day => {

switch(day) {
  case 'monday':
   return 8
   break;
  case 'tuesday':
    return 7
    break;
   case 'wednesday':
    return 8
    break;
   case 'thursday':
     return 5
     break;
     case 'friday':
       return 8
       break;
     case 'saturday':
      return 7
        break;
       case 'sunday':
        return 8
         break;
        default: 
         return "Error!"
  }
};

const getActualSleepHours = () => 
  getSleepHours('monday') + 
  getSleepHours('tuesday') + 
  getSleepHours('wednesday') + 
  getSleepHours('thurday') + 
  getSleepHours('friday') + 
  getSleepHours('saturday') +
  getSleepHours('sunday');



console.log(getSleepHours('monday'));
console.log(getActualSleepHours());

Please review my code any feedback is welcome. Thanks in advance!

#2

the implicit return seems to work, i get:

8
23Error!878

as output.

seems you made a typo in one of the days. Resulting a string.

#3

I am doing this one too. Just a question. In the instructions for the project, at this point it says define a function called ‘getActualSleepHours’. Then the example it gives, as above, is using a const not a function. i.e. I thought const was used to define a variable not a function.

Why is this? Thanks

#4

nocolahearn, the function you see declared with const, is actually called a ‘function statement’.
It is a variant to your standard function that begins with the ‘function’ keyword.

You may need to go back to the functions section to pick up on that difference.

#5

Ah yes! That makes sense thank you

#6

these docs are great, as you can see there is function declaration:

function square(number) {
  return number * number;
}

and function expression:

const square = function(number) { return number * number }

then es6 (an update to the JS language introduced arrow function expression (docs), an example:

const square = (number) => { return number * number }

as you can see, the syntax is very similar to function expression. except that the arrow function expression allows a couple of shorthands, so we can rewrite:

const square = number => number * number

if we only have a single parameter, we are allowed to omit the brackets

when the body of our function is only a single line, we can get rid of the curly brackets and return keyword, now we have an implicit return

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