How do I target and update computed property names?

Question

<script type="text/javascript">
//Please, how do i target and update computed property names?
let fName="First Name";
let sName="Last Name";
let priv={
[fName]: "Lorri",
[sName]: "Flinn",
username: "@lorri"
age: 25,
}
//I can target and update normal porperty names like username and age.
priv.username="@lorri0";
priv.age="26";
//But how do I target and update [fName] and [sName]?
//Thank you as you reply...
</script>

https://code.sololearn.com/WvikslXU89SW/#html

Answer 1

Use bracket notation:
priv[fname] = "Tobi";

https://www.sololearn.com/learn/JavaScript/1151/

Answer 2

Thanks... It worked...

Answer 3

Firs of all you forgot a comma in the object priv after username: "@lorri". After setting of that can you try above mentioned recomendations.