Multi argument 'if' & 'unless' conditionals in Spacebars / Handlebars for Meteor.js

example.html

<!--
Usage examples
-->

<!-- IF ANY -->
{{#if any truthyOne truthyTwo falsyThree}}
  You will see this.
{{/if}}

{{#if any falsyOne falsyTwo falsyThree}}
  You won't see this.
{{/if}}

<!-- UNLESS ANY -->

{{#unless any falsyOne falsyTwo falsyThree}}
  You will see this.
{{/unless}}

{{#unless any falsyOne falsyTwo truthyThree}}
  You won't see this.
{{/unless}}

helpers.js

// dependency: https://lodash.com 

Template.registerHelper('any', function () {
  var any = false;
  var cleanArgs = lodash.filter(arguments, function ( arg ) {
    if ( lodash.isArray( arg ) || arg === true )
      return true;
  });
  for ( var i = 0; i < cleanArgs.length; i++ ) {
    if ( ! lodash.isEmpty( cleanArgs[i] ) || cleanArgs[i] === true )
      any = true;
  };
  return any;
});