//------------------------------------------------------------------------------
// Constructor scope
//------------------------------------------------------------------------------
/**
* Creates a new instance of the Filter class. Note that this class is intended
* as a static library of methods, thus instantiation results in a warning.
*
* @constructor
*
* @class
* @classdesc
*
* The Filter class contains static methods that can be used with the Array
* object's filter method.
*/
rune.util.Filter = function() {
console.warn("This class is not meant to be instantiated.");
};
//------------------------------------------------------------------------------
// Public static methods
//------------------------------------------------------------------------------
/**
* Filter out duplicates in the Array object.
*
* @param {Object} element The current element being processed in the array.
* @param {number} [index] The index of the current element being processed in the array.
* @param {Array} [array] The array on which filter() was called.
* @param {Object} [thisArg] Value to use as this when executing callbackFn.
*
* @returns {boolean}
*/
rune.util.Filter.unique = function(element, index, array, thisArg) {
return array.indexOf(element) === index;
};