Learn Functional Programming by Building a Spreadsheet - Step 102

Tell us what’s happening:

Finally, to handle potential edge cases, add an empty string property (you will need to use quotes) which is a function that takes a single argument and returns that argument.

With that, your spreadsheet project is now complete. You are welcome to experiment with adding support for even more functions.

Your code so far

const spreadsheetFunctions = {

sum,
average,
median,
even: nums => nums.filter(isEven),
someeven: nums => nums.some(isEven),
everyeven: nums => nums.every(isEven),
firsttwo: nums => nums.slice(0, 2),
lasttwo: nums => nums.slice(-2),
has2: nums => nums.includes(2),
increment: nums => nums.map(num => num + 1),
random: ([x, y]) => Math.floor(Math.random() * y + x),
range: nums => range(…nums),
nodupes: nums => […new Set(nums).values()],
‘’ :(‘’) = (‘’),
}

i’m not able to understand what i’m missing. I tried everything that came to my mind but I couldn’t help.
please someone can try to explain to me?
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Challenge Information:

Learn Functional Programming by Building a Spreadsheet - Step 102

It is looking for a single argument not an empty argument

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you’ve just saved my life and my mental health! thank you!!

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