Learn Advanced Array Methods by Building a Statistics Calculator - Step 42

JavaScript
1

Tell us what’s happening:

Hello,

I have an issue with step 42, it’s not accepting my solution and I’m pretty sure I did as asked in the instructions, please help.

Task is:
Now chain the filter method to your latest Object.keys() call. The callback function should return whether the value of counts[el] is equal to your counts[highest] .

Your code so far

// User Editable Region

const getMode = (array) => {
  const counts = {};
  array.forEach((el) => {
    counts[el] = (counts[el] || 0) + 1;
  })
  if (new Set(Object.values(counts)).size === 1) {
    return null;
  }
  const highest = Object.keys(counts).sort(
    (a, b) => counts[b] - counts[a]
  )[0];
  **const mode = Object.keys(counts).filter(el => counts[el] === counts[highest]);**


// User Editable Region

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Challenge Information:

Learn Advanced Array Methods by Building a Statistics Calculator - Step 42

2

I’ve edited your code for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

Pre-formatted-text
Pre-formatted-text1356×380 401 KB

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (').

1 Like
3

Your solution works from my end. Please try one of the following steps to move forward.

Click on the “Restart Step” button and force a refresh of your page with CTRL + F5 then try to paste the code in again.

or - Try the step in incognito or private mode.

or - Disable any/all extensions that interface with the freeCodeCamp website (such as Dark Mode, Ad Blockers, or Spellcheckers), and set your browser zoom level to 100%. Both of these factors can cause tests to fail erroneously.

or - Ensure your browser is up-to-date or try a different browser.

I hope one of these will work for you.

4

Hi, thank you so much for prompt response.

I figured out what was the issue from console log, I didn’t have } for defining getMode function, seems like I accidentally deleted it :sweat_smile: