Can JSON be edited using JSON in javascript

Question

For example I have a JSON data like

olddata = {
    userNname : "joeydash",
    sex : "female",
    email : "[email protected]"
};
dataToEdit = {
    name = "Mritunjoy Das",
    sex = "male"
};

Is there any function in javascript such that if i do

newData = doSomething(oldData,dataToEdit);
console.log(newData);

it shows

{
   userNname : "joeydash",
   name : "Mritunjoy Das"
   sex : "male",
   email : "[email protected]"
}

Pavel · Accepted Answer · 2017-11-04 14:25:11Z

1

olddata = {
    userNname : "joeydash",
    sex : "female",
    email : "[email protected]"
};
dataToEdit = {
    name : "Mritunjoy Das",
    sex : "male"
};
var newData = Object.assign(olddata, dataToEdit);
console.log(newData);

answered Nov 4, 2017 at 14:25

Pavel

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3 Comments

Carsten Massmann Over a year ago

If you want to have a new object, created from olddata, you should use newData=Object.assign({},olddata,dataToEdit) instead. But even so, keep in mind that this will not be a "deep" copy.

Pavel Over a year ago

You're right, but the author didn't asked for a deep copy

jib Over a year ago

Pretty sure the author didn't ask for olddata to be overwritten.

wrangler · Accepted Answer · 2017-11-04 14:26:19Z

1

Try this:

function doSomething(oldData,dataToEdit){
     for (var key in dataToEdit) {
         if (dataToEdit.hasOwnProperty(key)) {
              oldData[key] = dataToEdit[key];       
         }
     }
     return oldData;
}

Also change = to : as:

dataToEdit = {
    name : "Mritunjoy Das",
    sex : "male"
};

edited Nov 4, 2017 at 14:26

answered Nov 4, 2017 at 14:12

wrangler

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1 Comment

joeydash Over a year ago

Thank you very much

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