删除或删除没有数组中所有所需项的完整数组

Question

删除没有“category”字段的数组

req：想摆脱obj [0]＆obj [2]，因为他们没有hav类别字段......

例如：

js数据：

var obj=[

{"email":"[email protected]","event":"open"},
{"ip":"24.38.43.233","email":"[email protected]","category":["webinar"]},
{"email":"[email protected]","event":"open"},
{"ip":"24.98.43.230","email":"[email protected]","category":["webinar"]},
{"ip":"24.77.55.931","email":"[email protected]","category":["webinar"]},
{"ip":"44.67.85.456","email":"[email protected]","category":["webinar"]}

];

预期o / p：

var obj = [

{"ip":"24.38.43.233","email":"[email protected]","category":["webinar"]},
{"ip":"24.98.43.230","email":"[email protected]","category":["webinar"]},
{"ip":"24.77.55.931","email":"[email protected]","category":["webinar"]},
{"ip":"44.67.85.456","email":"[email protected]","category":["webinar"]}

];

问题被编辑...为了简单的理解，提前感谢....

Answer 1

我不确定我是否完全理解这个问题，但我假设您想要摆脱所有没有category属性的对象。这个片段会做到这一点。

var obj=[
  {"email":"[email protected]","event":"open"},
  {"ip":"24.38.43.233","email":"[email protected]","category":["webinar"]},
  {"email":"[email protected]","event":"open"},
  {"ip":"24.38.43.230","email":"[email protected]","category":["webinar"]}
];

var result = obj.filter(participation => participation.hasOwnProperty('category'));
console.log(result);