javascript - Angular 7，使用对象的一些值创建新对象

Question

我有这样的对象

const Obj =
"Value1": {
    "value1value": "1"
},
"Value2": {
    "value2value": "2"
},
"Value3": {
    "value3value": "3"
},
"BTest": {
    "1": "1",
    "2": "2"
},
"Value4": {
    "value4value": "value4value"
},
"ATest": {
    "1": "1",
    "2": "2"
},
"Value5": {
    "value5value": "value5value",
    "value6value": "value6value"
},
"TestA": {
    "1": "1",
    "2": "2"
};

我需要的是创建看起来像这样的新对象

cont newObject = 
    "Value1": {
        "value1value": "1"
    },
    "Value2": {
        "value2value": "2"
    },
    "Value3": {
        "value3value": "3"
    },
    "Value4": {
        "value4value": "value4value"
    },
    "Value5": {
        "value5value": "value5value",
        "value6value": "value6value"
    };

一些值被删除了，我试过了

const newObject = Obj.map(o => {
          return {  };
        });

但我没有运气，有人知道必须做什么，提前谢谢

Answer 1

看起来你想提取以特定值开头的键，这样你就可以做类似的事情

var obj={"Value1": {
    "value1value": "1"
},
"Value2": {
    "value2value": "2"
},
"Value3": {
    "value3value": "3"
},
"BTest": {
    "1": "1",
    "2": "2"
},
"Value4": {
    "value4value": "value4value"
},
"ATest": {
    "1": "1",
    "2": "2"
},
"Value5": {
    "value5value": "value5value",
    "value6value": "value6value"
},
"TestA": {
    "1": "1",
    "2": "2"
}}

let newObj={};

Object.keys(obj).forEach(k=>{
if(k.startsWith('Value')){
newObj[k]=obj[k];
}
})
console.log(newObj)