add dynamic css class in angular 6 code example

Example 1: Angular add class dynamically

  {{ button.label }}

Example 2: Angular add class dynamically

buttons: Array<{label: string}> = [
    {
      label: 'Global'
    },
    {
      label: 'Maintenance'
    },
    {
      label: 'Settings'
    },
    {
      label: 'Profile'
    },
    {
      label: 'Transactions'
    }
  ]