js 获取对象数组中的交集、差集
废话不多说,直接上代码。
主要数据示例如下:
let arr1 = [ { disabled: 0, id: 159, dictKey: "warehouse_dept_1", dictValue: "仓储一部11" }, { disabled: 0, id: 160, dictKey: "warehouse_dept_2", dictValue: "仓储二部" }, { disabled: 0, dictValue: "ceshi" }, { disabled: 0, dictValue: "测试" }, { disabled: 0, dictValue: "测试11" } ] let arr2 = [ { disabled: 0, id: 159, dictKey: "warehouse_dept_1", dictValue: "仓储一部" }, { disabled: 0, id: 160, dictKey: "warehouse_dept_2", dictValue: "仓储二部" }, { disabled: 0, id: 161, dictKey: "warehouse_dept_3", dictValue: "仓储三部" } ]
具体处理方法:
let a = arr1.filter(x=>arr2.find(y=>y.id===x.id));//交集 let b = arr2.filter(x=>!arr1.find(y=>y.id === x.id));//差集 let c = arr1.filter(x=>!x.id);//无id b = b.map(item=>{ item.disabled = 1 return item });//更改数据 let e = [...a,...b,...c,]; console.log(e,b)
获取e数组的值是组合arr1和arr2 中去重并修改id重复中的属性值,更改两个数组差集的属性值的集合。