Hey everyone, today I'm going to show you how to change only the parent object in JavaScript without affecting its children objects. Let's get started!
So, let's say you have a nested object like this:
```javascript
const parentObj = {
name: 'John',
age: 30,
address: {
city: 'New York',
street: '123 Main St'
}
};
```
And you want to change the parentObj's name to 'Alice', without affecting its address. Here's how you can do it:
```javascript
const newParentObj = { ...parentObj, name: 'Alice' };
```
By using the spread operator ({ ... }), we create a new object newParentObj with the same properties as parentObj, and then we can change the name property without affecting the address property.
Another way to achieve the same result is by using Object.assign():
```javascript
const newParentObj = Object.assign({}, parentObj, { name: 'Alice' });
```
The Object.assign() method copies all enumerable own properties from one or more source objects to a target object, and it returns the target object. In this case, we create a new empty object as the target, copy all properties from parentObj to the target, and then change the name property.
It's important to note that both methods create a shallow copy of the parent object, so if the parent object contains nested objects or arrays, they will still be shared between the original and the new object. If you need to deep copy the parent object, you can use libraries like Lodash or write your own deep copy function.
With these simple techniques, you can now change only the parent object in JavaScript without affecting its children objects. Remember to always test your code and consider the impact of the changes on the rest of your application. Happy coding!
