我想根据属性值从响应中删除重复数组。如果attribute_value
数据与其他数组属性值匹配,则应删除其他数据。
逻辑非常简单。检查每个数组中的重复attribute_value并删除重复的数组并返回 作为回应。现在你可以看到属性值= 1是三次 和属性值= 2是两次
如果我看到属性值重复,我如何比较和删除整个数组?
我尝试使用过滤器方法似乎不起作用。请帮忙。
for(var j=0; j<social_post_link.length; j++){
newFilterarray = social_post_link[j].activity_attributes[0].attribute_value.filter(function(item, index) {
if (social_post_link[j].activity_attributes[0].attribute_value.indexOf(item) == index){
return social_post_link;
}
});
}
码
[
{
"id": "484822",
"activity_attributes": [
{
"id": "868117",
"activity_id": "484822",
"attribute_name": "position",
"attribute_value": "1",
}
]
},
{
"id": "484884",
"activity_attributes": [
{
"id": "868175",
"activity_id": "484884",
"attribute_name": "position",
"attribute_value": "1",
}
]
},
{
"id": "484888",
"activity_attributes": [
{
"id": "868182",
"activity_id": "484888",
"attribute_name": "position",
"attribute_value": "1",
}
]
},
{
"id": "484823",
"activity_attributes": [
{
"id": "868120",
"activity_id": "484823",
"attribute_name": "position",
"attribute_value": "2",
}
]
},
{
"id": "484975",
"activity_attributes": [
{
"id": "868344",
"attribute_name": "position",
"attribute_value": "2",
}
]
},
{
"id": "484891",
"activity_attributes": [
{
"id": "868189",
"attribute_name": "position",
"attribute_value": "3",
}
]
},
{
"id": "484903",
"activity_attributes": [
{
"id": "868200",
"attribute_name": "position",
"attribute_value": "4",
},
]
}
]
期望的输出
[
{
"id": "484822",
"activity_attributes": [
{
"id": "868117",
"activity_id": "484822",
"attribute_name": "position",
"attribute_value": "1",
}
]
},
{
"id": "484823",
"activity_attributes": [
{
"id": "868120",
"activity_id": "484823",
"attribute_name": "position",
"attribute_value": "2",
}
]
},
{
"id": "484891",
"activity_attributes": [
{
"id": "868189",
"attribute_name": "position",
"attribute_value": "3",
}
]
},
{
"id": "484903",
"activity_attributes": [
{
"id": "868200",
"attribute_name": "position",
"attribute_value": "4",
},
]
}
]
答案 0 :(得分:1)
一个简单的解决方案是使用 lodash 中的sortedUniqBy
函数:
const value = [{
"id": "484822",
"activity_attributes": [{
"id": "868117",
"activity_id": "484822",
"attribute_name": "position",
"attribute_value": "1",
}]
},
{
"id": "484884",
"activity_attributes": [{
"id": "868175",
"activity_id": "484884",
"attribute_name": "position",
"attribute_value": "1",
}]
},
{
"id": "484888",
"activity_attributes": [{
"id": "868182",
"activity_id": "484888",
"attribute_name": "position",
"attribute_value": "1",
}]
},
{
"id": "484823",
"activity_attributes": [{
"id": "868120",
"activity_id": "484823",
"attribute_name": "position",
"attribute_value": "2",
}]
},
{
"id": "484975",
"activity_attributes": [{
"id": "868344",
"attribute_name": "position",
"attribute_value": "2",
}]
},
{
"id": "484891",
"activity_attributes": [{
"id": "868189",
"attribute_name": "position",
"attribute_value": "3",
}]
},
{
"id": "484903",
"activity_attributes": [{
"id": "868200",
"attribute_name": "position",
"attribute_value": "4",
}, ]
}
];
const result = _.sortedUniqBy(value, function(item) {
return item.activity_attributes[0].attribute_value;
});
console.log(result);
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