JavaScript iterator garden – NodeIterator: a poor mans HTML scraper – FormIterator: a smart mans request data extractor

formdatai-iterator.html

<form name="test" id="form-id">
    <label for="name">Name</label>
    <input name="name" id="name" type="text">
    <label for="pass">Password</label>
    <input name="pass" id="pass" type="text">
</form>

<script>
    var it = new FormData( document.getElementById('form-id') ).entries();
    var current = {};
    while ( ! current.done ) {
        current = it.next();
        console.info( current )
    }
</script>

or…

<script>
    // props @soulmerge
    var it = new FormData( document.getElementById('form-id') ).entries();
    for ( var current = it.next(); ! current.done; current = it.next() ) {
        console.info( current.value );
    }
</script>

nodeiterator-scraper.js

// NodeIterator that fetches all text node and filters out nodes with no content
var nodeIterator = document.createNodeIterator( 
    document.body,
    NodeFilter.SHOW_TEXT,
    {
      acceptNode : function( node ) {
        if ( ! /^\s*$/.test( node.data ) ) {
          return NodeFilter.FILTER_ACCEPT;
        }
      }
  }
);

// Loop Nodes, Print results
while ( ( node = nodeIterator.nextNode() ) ) {
  console.log( node.data );
}