array-diff/ArrayDiffElement.js at master · coditect/array-diff · GitHub

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(function() {

	function defineArrayDiffElement() {

		function ArrayDiffElement(item, newIndex, oldIndex) {
			this.item = item;
			this.newIndex = newIndex;
			this.oldIndex = oldIndex;
		}

		ArrayDiffElement.prototype.added = function() {
			return this.oldIndex === undefined;
		};

		ArrayDiffElement.prototype.removed = function() {
			return this.newIndex === undefined;
		};

		ArrayDiffElement.prototype.common = function() {
			return this.oldIndex !== undefined && this.newIndex !== undefined;
		};

		return ArrayDiffElement;
	}


	// Use define() if using AMD/RequireJS
	if (typeof define === 'function' && define.amd) {
		define([], defineArrayDiffElement);
	}

	// Otherwise define it in the global context
	else {
		self.ArrayDiffElement = defineArrayDiffElement();
	}

})();