How to add multiple classes to a ReactJS Component?

Question

I am new to ReactJS and JSX and I am having a little problem with the code below.

I am trying to add multiple classes to the className attribute on eac

Answer 1

When I have many varying classes, I have found the following to be useful.

The filter removes any of the null values and the join puts all the remaining values into a space separated string.

const buttonClasses = [
    "Button", 
    disabled ? "disabled" : null,
    active ? "active" : null
].filter((class) => class).join(" ")