Finders Keepers-what does this asks to do?

JavaScript
1

Tell us what’s happening:
I am trying to understand what is this variable doing? is this variable mandatory or part of a for loop?

let num = 0;

I understand I need to do a foot loop to look through the array AND the function.

Your code so far


function findElement(arr, func) {
let num = 0;
return num;
}

findElement([1, 2, 3, 4], num => num % 2 === 0);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36.

Challenge: Finders Keepers

Link to the challenge:

2

I don’t know why it’s there, if you don’t find it useful delete it, and go with your own idea
It’s what I would do

1 Like
3

It is a bit confusing, but yes will do that, thanks!

4

How would you advise to pass the first element in the array that passes a truth test?
I understand is an evaluation but using the === would do the job?
Syntax is the issue

5

first you need to be sure you understand how to make the element undergo the truth test

and it depends what you are comparing

1 Like
6

I found on Stackoverflow that someone asked about this challenge so I will use .filter to make sure the element passes the test in the function