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How to Change Only Parent Object in JavaScript

Oct 18, 2024

Are you looking to modify only the parent object in JavaScript without affecting the nested objects? Here's how you can do it!

1. Use Object.assign():

You can use the Object.assign() method to change properties of the parent object without affecting the nested objects. This method creates a new object by copying the properties of the original object and then modifying it as needed.

Example:

```

const parentObj = {

name: 'John',

age: 30,

address: {

city: 'New York',

zip: 10001

}

};

const newParentObj = Object.assign({}, parentObj, { age: 25 });

```

2. Spread Operator:

Another way to change the parent object only is by using the spread operator. This operator allows you to create a new object with the properties of the original object and make modifications to it.

Example:

```

const parentObj = {

name: 'John',

age: 30,

address: {

city: 'New York',

zip: 10001

}

};

const newParentObj = { ...parentObj, age: 25 };

```

3. Manual Modification:

If you want to change just a single property of the parent object, you can also do it manually without affecting the nested objects.

Example:

```

const parentObj = {

name: 'John',

age: 30,

address: {

city: 'New York',

zip: 10001

}

};

parentObj.age = 25;

```

It's important to note that when using the above methods, the modifications are made to the parent object only, and the nested objects remain unchanged.

By following these approaches, you can easily change the parent object in JavaScript without altering the nested objects. This can be particularly useful when you need to update specific properties of an object while keeping its structure intact.

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