Just putting another option here.
loc_array.splice(-1)[0] === 'index.html' I found the above approach more clean and short onliner. Please, free feel to try this one.
Note: It will modify the original array, if you don't want to modify it you can use slice()
loc_array.slice(-1)[0] === 'index.html' Thanks @VinayPai for pointing this out.