lifecycle

yo-yo-lifecycle.js

function nodes (on, node) {
  return [].slice.call(node.childNodes)
    .map(nodes.bind(null, on))
    .reduce(
      function (sum, x) {
        return (Array.isArray(x) ? x : [x]).concat(sum)
      }, [node]
    )
    .filter(Boolean)
    .forEach((node) => {
      if (node[on]) node[on](node)
    })
}

store.subscribe(() => yo.update(el, render(), {
  onNodeAdded (node) { nodes('onadd', node) },
  onNodeDiscarded (node) { nodes('ondiscard', node) }
}))

nodes('onadd', el)