Implement the Mutations Algorithm - Implement the Mutations Algorithm

JavaScript
1

Tell us what’s happening:

I’ve tried this a couple different ways and I think this is nearly what’s needed.

When I run a console.log of Char in the ‘for’ loop it skips the first letter if they don’t match and I don’t undertand why it’s skipping the first letter

Your code so far

function mutation(arr) {
  let tester;
  let firstString = arr[0].toLowerCase();
  let secondString = arr[1].toLowerCase();
  for (const char of secondString)
  if (firstString.includes(char)) {
    tester = true
    
  } 
  else {
    tester = false
  }; return tester
};

console.log(mutation(["hello","hey"]));

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Challenge Information:

Implement the Mutations Algorithm - Implement the Mutations Algorithm

2

Try adding couple console.log calls to try to figure out what’s happening. Ie. just before tester is returned, or what’s the tester for each character.

3

that’s what I tried to do but explained it really badly,

when I run console.log(char) for [hello, neo] it skips the first letter of ‘neo’ is there a way to force it to check the first letter instead of starting at the first ‘true’ iteration?

4

Are you sure it’s skipped? How that could be confirmed?

5 
function mutation(arr) {
  let tester = false;
  let firstString = arr[0].toLowerCase();
  let secondString = arr[1].toLowerCase();
  for (const char of secondString)
  if (firstString.includes(char)) {
    console.log(char)
    tester = true
    
  } 
  else {
    tester = false
  }; return tester
};

console.log(mutation(["hello","neo"]));

the console.log for ‘char’ give ‘e,o’ meaning it is ignoring the ‘n’ and I can’t figure out how to stop the loop to account for the ‘n’

6

But wouldn’t this branch of the if/else not get executed in case of n, as it’s not included in hello? Is the else branch executed for it?

7

Thank you for the hint