add object value to an existing dotted key of an array

Question

How to add object value to an array, while key is know and there is another value on that key, but I don't want to remove it. Also key is dotted

Here is an example

array = [key1:{value1},key2:{value3}];
key = this.props.name;

I want to get:

array = [key1:{value1},{value2},key2:{value3}];

Maybe it is better to change base object type to object or value to array?

Answer 1

If you want to store values with keys it's better use object and arrays as values:

obj = {
   key1: [value1],
   key2: [value3]
}

then if you want to update the object

obj[this.props.name] = [...obj[this.props.name], 'newItem']