Explore a JSON structure and identify the parent key of a specific key:value pair

I may be new to coding, but I've hit a roadblock and can't seem to find the solution - despite numerous attempts on Google and StackOverflow.

Behold, a JSON object:

const json = {
    "catalog:aardvark": {
        "severity": "minor"
    },
    "catalog:baboon": {
        "severity": "minor",
        "testDependency": "dashboard:echidna"
    },
    "catalog:capybara": {
        "severity": "minor",
        "testDependency": "dashboard:ferret"
    },
    "dashboard:dingo": {
        "severity": "minor"
    },
    "dashboard:echidna": {
        "severity": "minor"
    },
    "dashboard:ferret": {
        "severity": "minor"
    }
}

My challenge is to retrieve the key "catalog:capybara" using either the key "testDependency" or the value "dashboard:ferret". The other inputs are not known for this purpose.

I've attempted various methods without success, and while it seems simple, I'm seeking guidance and assistance. Your help would be greatly appreciated!

PS: Don't let the colons in the keys and values confuse you.

javascriptjson

Answer №1

If you want to retrieve the keys of the object and locate the nested object, you can use a function like this:

function findKeyOfNestedObject(object, key, value) {
    return Object.keys(object).find(k => object[k][key] === value);
}

var obj = { "catalog:aardvark": { severity: "minor" }, "catalog:baboon": { severity: "minor", testDependency: "dashboard:echidna" }, "catalog:capybara": { severity: "minor", testDependency: "dashboard:ferret" }, "dashboard:dingo": { severity: "minor" }, "dashboard:echidna": { severity: "minor" }, "dashboard:ferret": { severity: "minor" } };

console.log(findKeyOfNestedObject(obj, 'testDependency', 'dashboard:ferret'));

Answer №2

To convert JSON into an array of keys and values, you can use the following method:

const keyValueArray = Object.keys(json).map((key) => {
    return  {key: key, value: json[key] };
});

Afterwards, you have the option to filter based on specific keys and values:

const filteredArray = keyValueArray.filter((obj) => {
    return obj.key === "catalog:capybara" || obj.value.testDependency === "dashboard:ferret";
});

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