staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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beoliver

// a better name would be - if predicate is True then success, else not success.
// using basic logic we can now create logic functions that compute only as much as required

// anyBool :: (a -> Bool) -> Bool -> [a] -> Bool
function anyBool(pred,success,xs) {
  for (var i = 0; i < xs.length; i++) {
    if (pred(xs[i]) === success) {
      return success }}
  return !success }