Как обрезать путь к файлу через regex?

var strWithFilename = "templates/FolderName/File.md"; 
var strWithPath = "templates/FolderName"; 
 
 
var fileName = strWithFilename.replace(/^.*[\\\/]/, ''); 
console.log(fileName); 
 
var folderName = strWithPath.replace(/^.*[\\\/]/, ''); 
console.log(folderName);

var strWithFilename = "templates/FolderName/File.md"; 
var strWithPath = "templates/FolderName"; 
 
var fileNameArr = strWithFilename.split("/"); 
var fileName = fileNameArr[fileNameArr.length - 1]; 
console.log(fileName); 
 
var folderNameArr = strWithPath.split("/"); 
var folderName = folderNameArr[folderNameArr.length - 1]; 
console.log(folderName);

var s = 'templates/FolderName/File.md'; 
console.log(s.split('/').pop());