Extract information from a JSON Object using a specific pathway

Question

Extract information from a JSON Object using a specific pathway

Let's consider a scenario where we have a JSON Object structured as follows:

var data = {
    "name": "abcd",
    "age": 21,
    "address": {
        "streetAddress": "88 8nd Street",
        "city": "New York"
    },
    "phoneNumber": [
        {
            "type": "home",
            "number": "111 111-1111"
        },
        {
            "type": "fax",
            "number": "222 222-2222"
        }
    ]
}

Now, the task is to extract information from this JSON object using a path specified as a string. For example:

var age = 'data/age'; // accessing age
var cityPath = 'data/address/city'; // accessing city
var faxNumber = 'data/phoneNumber/1/number'; // accessing fax number

The current method involves splitting the path by / and then referencing it like data.age or data.address.city. This method does not work efficiently for arrays within the JSON object.

Are there any alternative and more efficient approaches in JavaScript to tackle this issue?

javascript json jsonpath

Answer 1

Answer №1

This is a simple way to retrieve data from JSON without the need for complex paths:

var data = {
    "name": "abcd",
    "age": 21,
    "address": {
        "streetAddress": "88 8nd Street",
        "city": "New York"
    },
    "phoneNumber": [
        {
            "type": "home",
            "number": "111 111-1111"
        },
        {
            "type": "fax",
            "number": "222 222-2222"
        }
    ]
}

var age = data.age;
var cityPath = data.address.city;
var faxNumber = data.phoneNumber[0].number; // remember arrays start with index 0

console.log({age, cityPath, faxNumber})

If you find yourself needing to use paths in your JSON data, consider using lodash's get method https://lodash.com/docs#get

Answer 2

This is a simple way to retrieve data from JSON without the need for complex paths:

var data = {
    "name": "abcd",
    "age": 21,
    "address": {
        "streetAddress": "88 8nd Street",
        "city": "New York"
    },
    "phoneNumber": [
        {
            "type": "home",
            "number": "111 111-1111"
        },
        {
            "type": "fax",
            "number": "222 222-2222"
        }
    ]
}

var age = data.age;
var cityPath = data.address.city;
var faxNumber = data.phoneNumber[0].number; // remember arrays start with index 0

console.log({age, cityPath, faxNumber})

If you find yourself needing to use paths in your JSON data, consider using lodash's get method https://lodash.com/docs#get

Extract information from a JSON Object using a specific pathway

Answer №1

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