Learn Functional Programming by Building a Spreadsheet - Step 99

JavaScript
1

Tell us what’s happening:

What is the issue with my increment property?
Here is my error msg:
Your increment function should return an array of numbers incremented by one.

Your code so far

<!-- file: index.html -->


/* file: styles.css */


/* file: script.js */
// User Editable Region

const spreadsheetFunctions = {
  sum,
  average,
  median,
  even: nums => nums.filter(isEven),
  firsttwo: nums => nums.slice(0, 2),
  lasttwo: nums => nums.slice(-2),
  has2: nums => nums.includes(2),
  increment: nums => nums.every((nums) => nums+1),
  
}

// User Editable Region

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Challenge Information:

Learn Functional Programming by Building a Spreadsheet - Step 99

2

Hi there!

You need to return an array incremented by 1.
Currently you are returning the reference of an array nums.

3

does this code return an array if called?

I think using ‘every’ will not return an array as requested?
(feel free to look up what every returns on this website: Array.prototype.every() - JavaScript | MDN )

4

increment : nums.map(num => num + 1), this should work fine right but still I am not able to pass this

5

Increment is supposed to be an an arrow function. So change the code to an arrow function that takes a parameter called nums.