ipsos-components/src/material-examples/form-field-hint/form-field-hint-example.html

Material Design components for Angular

<div class="example-container">
  <mat-form-field hintLabel="Max 10 characters">
    <input matInput #input maxlength="10" placeholder="Enter some input">
    <mat-hint align="end">{{input.value?.length || 0}}/10</mat-hint>
  </mat-form-field>

  <mat-form-field>
    <mat-select placeholder="Select me">
      <mat-option value="option">Option</mat-option>
    </mat-select>
    <mat-hint align="end">Here's the dropdown arrow ^</mat-hint>
  </mat-form-field>
</div>