function equalArray( array1, array2 ) {

	return ( array1.length === array2.length ) && array1.every( function ( element, index ) {

		return element === array2[ index ];

	} );

}
Compare two arrays

@private
@param {Array} array1 Array 1 to compare
@param {Array} array2 Array 2 to compare
@return {boolean}        Returns true if both arrays are equal