function pluginsFrom(plugins) { var flatPlugins = { level1Value: [], level1Property: [], level2Block: [] }; plugins = plugins || []; flatPlugins.level1Value = plugins .map(function (plugin) { return plugin.level1 && plugin.level1.value; }) .filter(function (plugin) { return plugin != null; }); flatPlugins.level1Property = plugins .map(function (plugin) { return plugin.level1 && plugin.level1.property; }) .filter(function (plugin) { return plugin != null; }); flatPlugins.level2Block = plugins .map(function (plugin) { return plugin.level2 && plugin.level2.block; }) .filter(function (plugin) { return plugin != null; }); return flatPlugins; } module.exports = pluginsFrom;