How to use @for with NgClass in angular 18

I have the following HTML structure in my template:

<tbody>
@for(element of elements.value; track $index; let idx = $index, let isEven = $even){
<tr *ngClass="isEven ? 'some styles here' : 'some other styles otherwise' ">
<tr>
}
<tbody>


The problem is in this case I'm getting the following error:

Property 'isEven' does not exist on type 'MyCoomponentName'


Could someone explain how to use this new @for with the ngClass? My main goal is to paint even <tr> of one color and odds of another, maybe there is another way to do it but not sure.

I tried *ngClass={{isEven ? '' : ''}} but didn't worked but not sure that's even possible.

Continue reading...