How can I activate a button using Angular Material?

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To activate a button using Angular Material, you can use the mat-button directive provided by the library. First, you need to import the MatButtonModule from @angular/material in your module:

import { MatButtonModule } from '@angular/material/button';

@NgModule({
  imports: [
    // other imports
    MatButtonModule
  ],
  // ...
})
export class MyModule { }

Then, you can use the mat-button directive in your template to create a button:

<button mat-button>Click me</button>

This will create a styled button that can be clicked by the user. If you want to disable the button, you can use the disabled attribute:

<button mat-button [disabled]="isDisabled">Click me</button>

where isDisabled is a boolean value that determines whether the button is disabled or not.