looking to retrieve the corresponding value of a specific array key

I am trying to determine the value of a complex array, but I keep getting values like 0,1,2,3,4,5 as answers.

Here is the code snippet I am using to retrieve the state value of the array:

var shardState = Object.keys(mydata.cluster.collections[collectionName].shards[String(shardName)].state);
alert(shardState);

Below is the representation of the array:

{
  "responseHeader":{
    "status":0,
    "QTime":4},
  "cluster":{
    "collections":{
      "college":{
        "pullReplicas":"0",
        "replicationFactor":"1",
        "shards":{"shard1":{
            "range":"80000000-7fffffff",
            "state":"active",
javascriptarrays

Answer №1

It appears that you are currently performing the following actions:

console.log("Your result:", Object.keys("active"))
console.log("'active' converted to object:", Object("active"))

Object.keys is a function used to retrieve the keys of an object. However, if you pass a string to it, it will return the indices of all the characters in that string.
Therefore, it is recommended to remove Object.keys from your code:

const mydata = {
  "responseHeader": {
    "status": 0,
    "QTime": 4
  },
  "cluster": {
    "collections": {
      "college": {
        "pullReplicas": "0",
        "replicationFactor": "1",
        "shards": {
          "shard1": {
            "range": "80000000-7fffffff",
            "state": "active",
          }
        }
      }
    }
  }
}

const collectionName = "college", shardName = "shard1";

var shardState = mydata.cluster.collections[collectionName].shards[String(shardName)].state;
console.log(shardState);

Answer №2

Retrieve the current state of a shard in a specific collection by accessing 'shardState' from the 'mydata.cluster.collections[collectionName].shards[shardName]' object.

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