node to know if a string ends with extension code example

Example 1: javascript endswith

"Hello world".endsWith("world");//true
"Hello world".endsWith("Hello");//false

Example 2: javascript check if string ends with

function endsWith(str, suffix) {
    return str.indexOf(suffix, str.length - suffix.length) !== -1;
}

endsWith("hello young man","man");//true
endsWith("hello young man","boy");//false