Basic Algorithm Scripting - Confirm the Ending

JavaScript
1

To end whit this solution I started think in reverse.
First I split the str to it bring me a new arr of each letter of the stirng.
Then I create an empty array.
I loop for the array. Starting by the last index. And unshiting it to the empyt array. Then if the newArray were exactly as the target It return true; else false.

function confirmEnding(str, target) {
    let arr = str.split("");
    let arr_two = []; 
    for(let i = arr.length - 1; i >= 0; i--){
        arr_two.unshift(arr[i]);
        if(arr_two.join('') === target){
            return true; 
        }
    }
        return false; 
}
  console.log(confirmEnding("Congratulation", "on"));

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Challenge: Basic Algorithm Scripting - Confirm the Ending

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2

Do you have a question?

The return true in the middle is suspicious to me.