嗨那里,我正在尝试组合一个对象数组,并且需要最终结果是一个对象数组,其中一个attr唯一,另一个是一个数组,其中包含来自原始第二个attr的所有值
我有的数组:
let arr = [
{
name: 'cdd_register',
levels: 'read'
}, {
name: 'cdd_register',
levels: 'write'
}, {
name: 'annual_reports',
levels: 'write'
}
];
我期望的结果是:
let result = [
{
name: 'cdd_register',
levels: ['read', 'write']
}, {
name: 'annual_reports',
levels: 'write'
}
];
我从后端得到了这个回复
data: [{
id:1
label: "Administrator"
name: "admin"
permissions:{
data: [{
id: 4,
name: "cdd_register.read",
label: "Read access on CDD Register module"
}, {
id: 6,
name: "cdd_register.write",
label: "Write access on CDD Register module"
}, {
id: 7,
name: "annual_reports.write",
label: "Write access on Annual Reports module"
}]
}
}]
此后
getModules(roles) {
let modules = [];
_.forEach(roles, role => {
_.forEach(role.permissions.data, permission => {
modules.push(permission);
})
});
return _.uniqBy(modules, 'id').map(module => {
let moduleArray = module.name.split('.');
return {
name: moduleArray[0],
levels: moduleArray[1]
}
});
}
}
我现在有结果,但无法找出最佳方法(干净)。
感谢。
答案 0 :(得分:0)
这可以通过许多不同的方式完成。一种可能的方法是使用一些功能魔法
let arr = [{
name: 'cdd_register',
levels: 'read'
}, {
name: 'cdd_register',
levels: 'write'
}, {
name: 'annual_reports',
levels: 'write'
}];
let result = arr.reduce((acc, x) => {
const found = acc.find(y => (x.name == y.name));
if (!found) {
acc.push({
name: x.name,
levels: arr
.filter(y => (x.name == y.name))
.map(z => (z.levels))
});
}
return acc;
}, [])
console.log(result)