由幾個屬性組成的對象數組，並帶有下劃線

Question

我有這樣的對象數組。他們有重複屬性contactName和categoryName值

[ 
    { 
     categoryId:1 
     categoryName:"Default" 
     contactName:"Anonymous" 
     name:"Mobile" 
     value:"+4417087654" 
    }, 
    { 
     categoryId:1 
     categoryName:"Default" 
     contactName:"Anonymous" 
     name:"Email" 
     value:"test2@gmail.com" 
    }, 
    { 
     categoryId:1 
     categoryName:"Default" 
     contactName:"Test" 
     name:"Email" 
     value:"ivdtest@test.com" 
    }, 
    { 
     categoryId:1 
     categoryName:"Default" 
     contactName:"Test" 
     name:"Mobile" 
     value:"+4417087654" 
    }, 
    { 
     categoryId:2 
     categoryName:"Personal" 
     contactName:"Anonymous" 
     name:"Email" 
     value:"ivdtest@test.com" 
    }, 
    { 
     categoryId:2 
     categoryName:"Personal" 
     contactName:"Anonymous" 
     name:"Email" 
     value:"ivdtest@test.com" 
    }, 
    { 
     categoryId:2 
     categoryName:"Personal" 
     contactName:"Test" 
     name:"Email" 
     value:"ivdtest@test.com" 
    }, 
    { 
     categoryId:2 
     categoryName:"Personal" 
     contactName:"Test" 
     name:"Email" 
     value:"ivdtest2@test.com" 
    } 
] 

我通過性能contactName的值要他們組和categoryName

這可能是這樣的

[ 
    { 
    "categoryId": 1, 
    "categoryName": "Default", 
    entity: [ 
    { 
     "contactName": "Anonymous", 
     "addresses": [ 
     { 
     "name": "Mobile", 
     "value": "+4417087654" 
     }, 
     { 
     "name": "Email", 
     "value": "test2@gmail.com" 
     }, 
     { 
     "name": "Email", 
     "value": "ivdtest@test.com" 
     } 
    ] 
    }, 
    { 
     "contactName": "Test", 
     "addresses": [ 
     { 
     "name": "Mobile", 
     "value": "+4417087654" 
     }, 
     { 
     "name": "Email", 
     "value": "test2@gmail.com" 
     }, 
     { 
     "name": "Email", 
     "value": "ivdtest@test.com" 
     } 
    ] 
    }] 

    }, 
    { 
    "categoryId": 2, 
    "categoryName": "Personal", 
    entity: [ 
    { 
     "contactName": "Anonymous", 
     "addresses": [ 
     { 
     "name": "Mobile", 
     "value": "+4417087654" 
     }, 
     { 
     "name": "Email", 
     "value": "test2@gmail.com" 
     }, 
     { 
     "name": "Email", 
     "value": "ivdtest@test.com" 
     } 
    ] 
    }, 
    { 
     "contactName": "Test", 
     "addresses": [ 
     { 
     "name": "Mobile", 
     "value": "+4417087654" 
     }, 
     { 
     "name": "Email", 
     "value": "test2@gmail.com" 
     }, 
     { 
     "name": "Email", 
     "value": "ivdtest@test.com" 
     } 
    ] 
    }] 

    } 

] 

Answer 1

var output = _.groupBy(input, function(entry) { 
    return entry.categoryName + ',' + entry.contactName; 
}); 

https://jsfiddle.net/9ttg1t3z/

Answer 2

在平凡的Javascript中，您可以爲嵌套組使用輔助對象。

var data = [{ categoryId: 1, categoryName: "Default", contactName: "Anonymous", name: "Mobile", value: "+4417087654" }, { categoryId: 1, categoryName: "Default", contactName: "Anonymous", name: "Email", value: "test2@gmail.com" }, { categoryId: 1, categoryName: "Default", contactName: "Test", name: "Email", value: "ivdtest@test.com" }, { categoryId: 1, categoryName: "Default", contactName: "Test", name: "Mobile", value: "+4417087654" }, { categoryId: 2, categoryName: "Personal", contactName: "Anonymous", name: "Email", value: "ivdtest@test.com" }, { categoryId: 2, categoryName: "Personal", contactName: "Anonymous", name: "Email", value: "ivdtest@test.com" }, { categoryId: 2, categoryName: "Personal", contactName: "Test", name: "Email", value: "ivdtest@test.com" }, { categoryId: 2, categoryName: "Personal", contactName: "Test", name: "Email", value: "ivdtest2@test.com" }], 
 
    result = []; 
 

 
data.forEach(function (a) { 
 
    if (!this[a.categoryName]) { 
 
     this[a.categoryName] = { _: [] }; 
 
     result.push({ categoryId: a.categoryId, categoryName: a.categoryName, entity: this[a.categoryName]._ }); 
 
    } 
 
    if (!this[a.categoryName][a.contactName]) { 
 
     this[a.categoryName][a.contactName] = []; 
 
     this[a.categoryName]._.push({ contactName: a.contactName, addresses: this[a.categoryName][a.contactName] }); 
 
    } 
 
    this[a.categoryName][a.contactName].push({ name: a.name, value: a.value }); 
 
}, Object.create(null)); 
 

 
console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }