Tips on utilizing path variables within JSON paths

Question

Tips on utilizing path variables within JSON paths

I'm attempting to utilize a path variable within a JSON path.

The issue I'm facing is that my variable is being added as a new key to the JSON object instead of replacing the path.

Here's an Example of My Code

Data = {
    first:{
        "Name":"John",
        "Age":"43"
    }
}

let path = "first.name"
let value = "Jan"

Data[path] = value
console.log(Data)

Current Result

Data = {
    first:{
        "Name":"John",
        "Age":"43"
    },
    "first.name": "Jan",
}

Desired Outcome

Data = {
    first:{
        "Name":"Jan",
        "Age":"43"
    }  
}

Any suggestions on how to resolve this issue? Appreciate your assistance 🙏

javascript json variables path

Answer 1

Answer №1

If you're searching for a solution to manipulate an object based on a given path, this script might be just what you need. All it needs is the correct path to work its magic! :-)

function updateObjectAttribute(obj, path, value){
    let objCopy = obj;
    let attributeNames = path.split('.');
    for(let index = 0; index < attributeNames.length-1; index++){
        objCopy = objCopy[attributeNames[index]];
    }
    objCopy[attributeNames[attributeNames.length-1]] = value;
    return obj;
}


Data = {
    first:{
        "Name":"John",
        "Age":"43"
    }
}

updateObjectAttribute(Data, "first.Name", "Jan");
console.log(Data);

This script efficiently modifies object attributes by taking advantage of the shared reference between objCopy and obj.

Answer 2

If you're searching for a solution to manipulate an object based on a given path, this script might be just what you need. All it needs is the correct path to work its magic! :-)

function updateObjectAttribute(obj, path, value){
    let objCopy = obj;
    let attributeNames = path.split('.');
    for(let index = 0; index < attributeNames.length-1; index++){
        objCopy = objCopy[attributeNames[index]];
    }
    objCopy[attributeNames[attributeNames.length-1]] = value;
    return obj;
}


Data = {
    first:{
        "Name":"John",
        "Age":"43"
    }
}

updateObjectAttribute(Data, "first.Name", "Jan");
console.log(Data);

This script efficiently modifies object attributes by taking advantage of the shared reference between objCopy and obj.

Tips on utilizing path variables within JSON paths

Answer №1

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