Lodash uniqWith method
语法：
_.uniqWith(array, [comparator])
This method is like _.uniq except that it accepts comparator which is invoked to compare elements of array. The order of result values is determined by the order they occur in the array.The comparator is invoked with two arguments: (arrVal, othVal).
参数
array (Array) − The array to inspect.
[comparator] (Function) − The comparator invoked per element.
输出：
(Array) − Returns the new duplicate free array.
实例：
var _ = require('lodash');
var list = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
var result = _.uniqWith(list, _.isEqual);
console.log(result);
Save the above program in
tester.js. Run the following command to execute this program.
命令：
输出：
[ { x: 1, y: 2 }, { x: 2, y: 1 } ]
