I have this `isData` variable declared in my ts file

```
isData:boolean=false;

```

i have this button on my component

```
<button
        class="btn btn-primary"
        type="button"
        (click)="save()"
        *ngIf="isData===false"
      >
        Save
    </button>

```

`isData` is false but button is not shown i have tried with `isData=='false'` this also same issue.

Any solution Thanks