Checking last character

Question

What would you consider being the best way to check the last character of a string?
var folderPath = '~/Desktop/Test';
if (folderPath[folderPath.length - 1] !== '/') { folderPath += '/'; }
  or
if (folderPath.slice(-1) !== '/') { folderPath += '/'; }
I see that changePath() can also be used to keep track of this path separator.
Thanks.

Answer 1

Hi Hans,
I was trying to come up with a function to move a folder and it's contents, or a file... similar to how the OS X Finder would do it.  However, I just noticed when the files are copied over, they're not the same file size as the original which makes me think it's stripping resource forks, etc.  :-(
I'm looking now at using doScript and running ditto from the command-line with applescript.  Here's the code I was working with earlier though:
function moveItem(oldPath, newPath) {
    newPath = newPath.toString();
    //if (newPath[newPath.length - 1] !== '/') { newPath += '/'; }
    if (newPath.slice(-1) !== '/') { newPath += '/'; }
    var oldPathType = oldPath.constructor.name;
    if (oldPathType === 'Folder') {
        newPath += (oldPath.name + '/');
        with (Folder(newPath)) {
            if (! exists) { create(); }
        for each (var i in oldPath.getFiles()) {
            if (i.constructor.name === 'Folder') {
                moveItem(i, newPath);
            } else {
                i.copy(newPath + i.name);
                i.remove();
        oldPath.remove();
    } else if (oldPathType === 'File') {
        oldPath.copy(newPath + oldPath.name);
        oldPath.remove();
    } else {
        throw 'Problem moving file/folder!';