How to set `aria-disabled` as true using JavaScript

Question

I have no idea about JS. But there is needed one line of code in my Ruby. I have the below `html`. ```

``` I want JS code to make the first and second button to make them visible. What would be the code? Please help.

Accepted Answer

The current way of setting `aria-` attributes is to reference the properties directly.

To get:

```
let el = document.getElementById('foobar');
console.log(el.ariaDisabled); // Should log the current value of aria-disabled.
```

To set:

```
let el = document.getElementById('foobar');
el.ariaDisabled = 'true';
console.log(el.ariaDisabled); // Should log 'true'.
```

Reference: Element.ariaDisabled MDN

Solution