zebra rows, stripes, odd & even classes handlebars helper

README.md

See: Handlebars.js Part 2: Partials and Helpers

stripes.js

Handlebars.registerHelper("stripes", function(array, even, odd, fn, elseFn) {
  if (array && array.length > 0) {
    var buffer = "";
    for (var i = 0, j = array.length; i < j; i++) {
      var item = array[i];
 
      // we'll just put the appropriate stripe class name onto the item for now
      item.stripeClass = (i % 2 == 0 ? even : odd);
 
      // show the inside of the block
      buffer += fn(item);
    }
 
    // return the finished buffer
    return buffer;
  }
  else {
    return elseFn();
  }
});

template.hbs

{{#stripes myArray "even" "odd"}}
  <div class="{{stripeClass}}">
    ... code for the row ...
  </div>
{{else}}
  <em>There aren't any people.</em>
{{/stripes}}