What is the best way to verify if an element in Angular HTML is not undefined while also being hidden within a block?

Is there a way to verify if an element is not undefined with a hidden-block? In other words, how can I modify the code below using a hidden-block?

 <div class="timeSlot" *ngIf="timeSlot.track">

I attempted something like this

   <div class="timeSlot" [hidden]="!timeSlot?.track">

However, it's not quite the same.

I am hopeful that someone has a solution for me.

Thank you

Answer №1

If you want to experiment with a different approach, consider utilizing shorthand notation within a concealed directive:

<div class="scheduleTimeSlot" [hidden]="scheduledSlot.time === null ? true : false">

Answer №2

Using HTML Markup

<div class="scheduleSlot" [visible]="isDisplayed()">

Implementing in TypeScript File

isDisplayed() {
if(this.scheduleSlot.appointment === undefined) {
 return true;
}
return false;
}

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