Alert specified strings?

Question

i need this code to alert the strings that end with the arg "Letter"

function HasFinalLetter(strList, Letter) {
var arr = [];
var str = strList.split(" ");
arr.push(str);
}

HasFinalLetter("Hello World!", "!");

This should only alert "World!

The letter can be multiple letters
so we can make Letter "llo"
And that should alert "Hello"
I hope I worded this right

Answer 1

No need to code anything, javascript has that!

"Hello, world!".endsWith("world!"); //true

Answer 2

Single match method

function hasFinalLetter(str, letter) {
var re = new RegExp("[ ](\\w+?" + letter + ")|(^\\w+?" + letter + ")");
return str.match(re)[0];
}

https://code.sololearn.com/W6QIk5nJKxSg/?ref=app

Answer 3

I know
this was for a specific assignment somebody posted on brainly Schindlabua
lol

the function must be called "HasFirstLetter"
It must have 2 args. "strList" and "letter"

the function must output any words that end with the specified letter/letters

Answer 4

It could be a single letter
I don't remember