Yes, particularly when you know the types that will be passed in. True that typechecking in JS can be a little timeconsuming, so it might take 10-15 for me to

Yes, particularly when you know the types that will be passed in. True that typechecking in JS can be a little timeconsuming, so it might take 10-15 for me to write a general purpose left pad. Also I seem to remember that someone benchmarked the cached version and found it to be slower than the naive approach anyway. I could be mistaken there.