Better property detection using underscore

gistfile1.txt

// _.propertyOf along with any other underscore (i.e. _.isObject) to check if something was available instead of
// doing an undefined and null check.
_.isObject(_.propertyOf(data.prop)("prop"));

// _.propertyOf returns a function so you can also assign that to a variable and then use it later as well

var dataPropOf = _.propertyOf(data.prop);
_.isObject(dataPropOf("prop"));

// The exact same technique can be used if the property was an array:
_.isArray(_.propertyOf(data.prop)("prop"));