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JavaScript

Posted by Daniele Manca
Daniele Manca
Courses Plus Student 7,548 Points

Help with "Create a method called 'requiredValues' that returns an array of all the values of inputs with the class of 'required'."

Hi all,

Could someone help with this function please?

I am kinda stuck,

:(

5 Answers

Andrew Chalkley
STAFF
Andrew Chalkley
Treehouse Guest Teacher
Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher

Hey Daniele Manca

The questions is asking for the values which is val() not val() == "". If that's what you're doing :)

Regards
Andrew

Daniele Manca
Daniele Manca
Courses Plus Student 7,548 Points

Thanks Andrew, think I am being a little dumb in here, I've been trying to use different variations of the below code, without any success:

function requiredValues(val) { return val.addClass(".required"); }

Dani

Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher
Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher

No worries Daniele Manca!

There are fields with the class "required".

So to select them you'd use $(".required").

To do what the question is asking you'd need to do this.

// Create the function requiredValues()
    // In the function create an empty array
    // for each of the $(".required") fields
        //push the val() on to the empty array
    // return the array

Hopefully this pseudo-code above will point you in the right direction.

Daniele Manca
Daniele Manca
Courses Plus Student 7,548 Points

Hey Andrew, thanks again,

But I am still stuck, I do get the concept now, but I am unable to make it work exactly...

This is the code I am now using:

function requiredValues() {
  var myArray = [];
  myArray.push(".required");
  return myArray;  
}
Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher
Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher

You're almost there...

function requiredValues() {
  var myArray = [];
  $(".required").each(function() {
      myArray.push(//enter the value of $(this) here...);
  });
  return myArray;  
}
Sander de Wijs
Sander de Wijs
Courses Plus Student 22,267 Points

Hi Andrew,

Is it possible to use ''' var myArray = new Array; ''' instead of ''' var myArray = [] '''

Daniele Manca
PLUS
Daniele Manca
Courses Plus Student 7,548 Points
Daniele Manca
Daniele Manca
Courses Plus Student 7,548 Points

@Josh, I do agree with you pal, because i felt exactly the same way you described it, oh well...

Sander de Wijs
PLUS
Sander de Wijs
Courses Plus Student 22,267 Points
Sander de Wijs
Sander de Wijs
Courses Plus Student 22,267 Points

Hi Andrew,

Is it possible to use ``` var myArray = new Array

instead?
Josh Flowers
Josh Flowers
7,010 Points
Josh Flowers
Josh Flowers
7,010 Points

I'm lost. It seems like I'm trying what you suggest, but then I get "task 1 is no longer passing"

function isValidEmail(email){
    return email.indexOf("@") != -1;
}

function requiredValues() {
  var myArray = [];
  $(".required").each(function() {
      myArray.push($(this).val();
  });
  return myArray;  
}
Josh Flowers
Josh Flowers
7,010 Points

Never mind, I noticed I was missing a bracket.

Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher
Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher

You'll have a syntax error on this line:

myArray.push($(this).val();

You're missing a )

Josh Flowers
Josh Flowers
7,010 Points

Thanks, but luckily I caught it before you posted! lol

Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher
Andrew Chalkley
Andrew Chalkley
Treehouse Guest Teacher

No worries :) A second pair of eyes is always good to have :)

Josh Flowers
Josh Flowers
7,010 Points

Have you found that these 3 code tasks cause quite the bit of confusion? I didn't find the material overly difficult in the video, but the way the tasks were structured really threw me off.

I guess what I'm trying to say is that (mostly for task 2 and 3) I wasn't really sure what I was being asked to do.

I dunno, maybe it's just me.