There're already enough.

Thanks man, this is really helpful for noobies like me.

Putting '+' before a string which represents a number will coerce that string into a number, but that's not best practice as it isn't as readable as other methods.

Example subsequence

Subsequences of "abc" = "a", "b", "c", "ab", "ac", "bc"

"ac"!

thanks man!

[3, 2, 3, 7, 7, 0].numberOfOccurances(3) // returns 2

It's the equivalent of:

imageFilter = function(arr) {
  return arr.map(function(x) {
    return x.match(/^(.+)\.(jpg|gif|png|tiff|svg|bmp)$/i)
  })
}

Arrow-functions (also called lambda-functions elsewhere) are a cornerstone of functional programming. They make declaring simple functions so much easier.

I have been learning Python for the last two years (CodeWars has helped me a lot!). But I have only really been messing around with JavaScript for less than two months.

Mostly I try to solve (or think about solving) the kata using Python and then translate it into JavaScript. Then I get to look at other solutions and see much better ways!

thanks for the help, im new to ruby :)

Thanks.

I guess it is obvious that I am very new to JavaScript. I still have a lot to learn.

I like your solution though, it seems very easy to follow!