has-values
Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.
array-unique
Remove duplicate values from an array. Fastest ES5 implementation.
arr-diff
Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.
array-union
Create an array of unique values, in order, from the input arrays
