Javascript Lodash - 替换对象中的对象

Question

I have an object like this:

{
    "memory": {
        "memory1":{
            "schedule":"every day",
            "measure": [
                { "date": "date 1", "value": "10" }
            ]
        },
        "memory2": {
            "schedule":"every month",
            "measure": [
                { "date": "date 2", "value": "40" },
                { "date": "date 3", "value": "22" }
            ]
        },
        "memory3": {
            "schedule": "every day",
            "measure": []
        }
    },
    "loads": {
        "load1": {
            "schedule":"every day",
            "measure": [
                { "date": "date 4", "value": "40" }
            ]
        }
    }
}

Given a name (that in this object is memory and loads ) and a type (that in this object is memory1 , memory2 , memory2 for memory and load1 for loads

I need to add another object to measure element, searching for his name and type.

For example, given memory and memory2 as variable value and an object { "date": "date 1", "value": "10" } , i will need to concatenate this to measure on the second element (that is memory2) in the first tree that is memory.

I will need too maintain the "measure" array no more than 10 elements (FIFO strategy) but this is another story....

Right now i have created an new object with the new measure, but how to "replace" or "concat" it in the right tree place?

The result should be:

{
    "memory": {
        "memory1":{
            "schedule":"every day",
            "measure": [
                { "date": "date 1", "value": "10" }
            ]
        },
        "memory2": {
            "schedule":"every month",
            "measure": [
                { "date": "date 2", "value": "40" },
                { "date": "date 3", "value": "22" },
                { "date": "date 3", "value": "22" }  THIS IS THE ELEMENT TO ADD
            ]
        },
        "memory3": {
            "schedule": "every day",
            "measure": []
        }
    },
    "loads": {
        "load1": {
            "schedule":"every day",
            "measure": [
                { "date": "date 4", "value": "40" }
            ]
        }
    }
}

Answer 1

In order to access and modify the nested object property values dynamically you can utilize an Object method like Object.prototype.getNestedValue() It takes a series of strings or integers as arguments (strings for object properties and integers for array indices) in the order of how they are nested. Lets see...

 Object.prototype.getNestedValue = function(...a) { return a.length > 1 ? (this[a[0]] !== void 0 && this[a[0]].getNestedValue(...a.slice(1))) : this[a[0]]; }; var data = { "memory": { "memory1":{ "schedule":"every day", "measure": [ { "date": "date 1", "value": "10" } ] }, "memory2": { "schedule":"every month", "measure": [ { "date": "date 2", "value": "40" }, { "date": "date 3", "value": "22" } ] }, "memory3": { "schedule": "every day", "measure": [] } }, "loads": { "load1": { "schedule":"every day", "measure": [ { "date": "date 4", "value": "40" } ] } } }, newMeasureData = { "date": "date 3", "value": "22" }; data.getNestedValue("memory","memory2","measure").push(newMeasureData); console.log(JSON.stringify(data,null,2));