javascript - 如何在 javascript 数组中存储对(和更新/检索)对象属性的引用

Question

这是一个对象

var someObject = {
    value1: 'nothing',
    value2: 'nothing',
    ...
}

这是一个数组

var someArray = [someObject.value1, someObject.value2, ...]

这里有个问题

forEach(var i in someArray){
    //How would I update someObject.value1 here
    someArray[i] = 'something'
}
//so that this would be 'something'
var someVar = SomeObject.value1

编辑:这个解决方案满足了我的需求

someObject: same

someArray = ['value1', 'value2']

forEach(var i in someArray){
    someObject[someArray[i] = 'something'
}

console.log(someObject.value1) //something

Answer 1

在 someArray 中，您引用了原始值而不是对象。

您可以存储对象 someObject 的键并使用它们来更新对象。

var someObject = { value1: 'nothing', value2: 'nothing' },
    someArray = ['value1', 'value2'];                      // keys

someArray.forEach(k => someObject[k] = 'something');       // update with keys

console.log(someObject);