Is there a way to filter out only the objects from the JSON data and exclude the strings?

Question

Is there a way to filter out only the objects from the JSON data and exclude the strings?

I am facing an issue while looping through a JSON object. The presence of strings in the JSON is causing the loop to fail. How can I iterate only through the objects in the JSON without affecting the loop?

My main goal is to iterate through the objects contained within the JSON.

I attempted if(json.length!=3) but encountered failure when reaching the object, presumably due to the lack of length property for the object
Another approach was using
```
json.hasOwnProperty("field_id")
```
, which failed at encountering the string "and"
Using if(json.length=undefined) also did not work as the length ended up becoming undefined itself

Below is my JSON data:

[
    {
        "field_id": 122,
        "operator_id": "1",
        "where_flag": true
    "and",
    {
        "field_id": 128,
        "operator_id": "0",
        "where_flag": true
    },
    "and",
    {
        "field_id": 148,
        "operator_id": "1",
        "where_flag": true
    }
]

javascript json

Answer 1

Answer №1

To optimize your process, my suggestion is to initially filter the items before proceeding with a loop:

function checkIfObject(data) {
  return typeof data === "object" && data !== null;
}

array.filter(element => checkIfObject(element)).forEach(...)

Alternatively, you could consolidate both steps into a single loop (although this approach is not typically recommended):

array.forEach(element => {
  if(!checkIfObject(element)) return;

  ...
})

Answer 2

To optimize your process, my suggestion is to initially filter the items before proceeding with a loop:

function checkIfObject(data) {
  return typeof data === "object" && data !== null;
}

array.filter(element => checkIfObject(element)).forEach(...)

Alternatively, you could consolidate both steps into a single loop (although this approach is not typically recommended):

array.forEach(element => {
  if(!checkIfObject(element)) return;

  ...
})

Answer 3

Answer №2

Perhaps this solution will do the trick:

let data = [
    {
        "field_id": 122,
        "operator_id": "1",
        "where_flag": true
    },
    "and",
    {
        "field_id": 128,
        "operator_id": "0",
        "where_flag": true
    },
    "and",
    {
        "field_id": 148,
        "operator_id": "1",
        "where_flag": true
    }
]

data.forEach((element)=>{
    if(typeof(element)=="object"){
        console.log(element)
    }
})

Answer 4

Perhaps this solution will do the trick:

let data = [
    {
        "field_id": 122,
        "operator_id": "1",
        "where_flag": true
    },
    "and",
    {
        "field_id": 128,
        "operator_id": "0",
        "where_flag": true
    },
    "and",
    {
        "field_id": 148,
        "operator_id": "1",
        "where_flag": true
    }
]

data.forEach((element)=>{
    if(typeof(element)=="object"){
        console.log(element)
    }
})

Is there a way to filter out only the objects from the JSON data and exclude the strings?

Answer №1

Answer №2

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