这是我的 JSON 对象：{"id": 2,"full_name": "Karan Kumar","user_skills": [ { "skill_id": 1, "skill": { "skill_name": "Angular 8" } }, { "skill_id": 3, "skill": { "skill_name": "Java Spring" } }],"resource_allocateds": [ { "project_id": 1, "end_date": "2019-06-20", "project": { "project_name": "Inventory System" } }, { "project_id": 2, "end_date": "2020-01-15", "project": { "project_name": "Hospital Management System" } } ]}我想从上面的 JSON 中选择某些属性，并且我希望它是这样的：{ "id": 1, "full_name": "Karan Kumar", "skills": [{ "skill_id": 1, "skill_name": "Angular 8" }, { "skill_id": 3, "skill_name": "Java Spring" }], "resource_allocateds": [{ "project_id": 1, "end_date": "2019-06-20", "project_name": "Inventory System" }, { "project_id": 2, "end_date": "2020-01-15", "project_name": "Hospital Management System" }]}我试过使用 Lodash's partialRight，但它似乎不适用于可迭代对象，也尝试过 flatMap，但没有用。如果有人帮助我解决这个问题，那就太好了。提前致谢！
2 回答
温温酱
TA贡献1752条经验 获得超4个赞
你可以使用 vanilla javascript 而不是 Lodash 来做到这一点。寻找像 map/reduce/filter 这样的 ES6 方法。例子 ：
const input = {
"id": 2,
"full_name": "Karan Kumar",
"user_skills": [
{
"skill_id": 1,
"skill": {
"skill_name": "Angular 8"
}
},
{
"skill_id": 3,
"skill": {
"skill_name": "Java Spring"
}
}
],
"resource_allocateds": [
{
"project_id": 1,
"end_date": "2019-06-20",
"project": {
"project_name": "Inventory System"
}
},
{
"project_id": 2,
"end_date": "2020-01-15",
"project": {
"project_name": "Hospital Management System"
}
}
]
};
const { id, full_name, user_skills, resource_allocateds } = input;
const output = {
id,
full_name,
skills: user_skills.map(item => ({
skill_id: item.skill_id,
skill_name: item.skill.skill_name
})),
resource_allocateds: resource_allocateds.map(item => ({
project_id: item.project_id,
end_date: item.end_date,
project_name: item.project.project_name
})),
}
拉风的咖菲猫
TA贡献1995条经验 获得超2个赞
您可以使用toArrayand mapValueslike 如下所示：
const jsonData = {
"id": 2,
"full_name": "Karan Kumar",
"user_skills": [
{
"skill_id": 1,
"skill": {
"skill_name": "Angular 8"
}
},
{
"skill_id": 3,
"skill": {
"skill_name": "Java Spring"
}
}
],
"resource_allocateds": [
{
"project_id": 1,
"end_date": "2019-06-20",
"project": {
"project_name": "Inventory System"
}
},
{
"project_id": 2,
"end_date": "2020-01-15",
"project": {
"project_name": "Hospital Management System"
}
}
]
};
const transformedJson = {...jsonData};
transformedJson.user_skills = _.toArray(_.mapValues(transformedJson.user_skills, ({ skill_id, skill }) => {
return {
skill_id,
skill_name: skill.skill_name
};
}));
transformedJson.resource_allocateds = _.toArray(_.mapValues(transformedJson.resource_allocateds, ({ project_id, project }) => {
return {
project_id,
project_name: project.project_name
};
}));
document.getElementById('jsonResults').innerHTML = JSON.stringify(transformedJson, null, 2);
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.19/lodash.min.js"></script>
<pre id="jsonResults"></pre>
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