_.pickBy(object, [predicate=_.identity])

_.uniq(array) source

_.isUndefined(value)

_.merge(object, [sources])

_.find(collection, [predicate=_.identity], [fromIndex=0])

_.isArguments(value)

_.toString(value)

_.chain(value)

_.without(array, [values])

_.forEach(collection, [iteratee=_.identity])