数组中对象去重

最新推荐文章于 2020-06-19 10:45:52 发布

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最新推荐文章于 2020-06-19 10:45:52 发布

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CC 4.0 BY-SA版权

文章标签： json

原文链接：http://www.cnblogs.com/shuaitong/p/8583088.html

本文介绍了一种使用JavaScript去除数组中重复对象的方法。通过将对象转换为字符串并利用JSON的特性来实现唯一性的判断，最终得到不含重复项的优惠券数组。

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let coupons=[ { "id": 95, "appId": "mitang", "deleted": false, "creator": null, "created": 1520560522000, "modifier": null, "modified": 1520560522000, "pageSize": null, "offset": null, "type": 1, "typeId": 76, "userId": 108, "guideId": 32216, "storeId": null, "couponId": 3, "couponSn": "mt0000000001", "startTime": 1520560522000, "endTime": 1520560522000, "couponName": "发生的发生", "remark": "", "couponPackId": null, "writeOff": 0, "face": "10" }, { "id": 95, "appId": "mitang", "deleted": false, "creator": null, "created": 1520560522000, "modifier": null, "modified": 1520560522000, "pageSize": null, "offset": null, "type": 1, "typeId": 76, "userId": 108, "guideId": 32216, "storeId": null, "couponId": 3, "couponSn": "mt0000000001", "startTime": 1520560522000, "endTime": 1520560522000, "couponName": "发生的发生", "remark": "", "couponPackId": null, "writeOff": 0, "face": "10" } ]

let unique = {};
coupons.forEach(function (gpa) {
unique[JSON.stringify(gpa)] = gpa
});
coupons = Object.keys(unique).map(function (u) {
return JSON.parse(u)
});

数组中不支持直接比较对象；

转载于:https://www.cnblogs.com/shuaitong/p/8583088.html