app.component.html

<form [formGroup]="signUpForm">
    <table>
        <tr>
            <td>
                <label>Username:</label>
            </td>
            <td>
                <input name="username" type="text" formControlName="username">
            </td>
        </tr>
        <tr>
            <td>
                <label>Password:</label>
            </td>
            <td>
                <input name="password" type="password" id="pass" formControlName="password" #pass>
            </td>
        </tr>
        <tr>
            <td>
                <label>Confirm Password:</label>
            </td>
            <td>
                <input name="confirmPassword" type="password" formControlName="conPassword">
            </td>
            <td *ngIf="!allControls.conPassword.errors?.equal && allControls.conPassword.touched">
                Password doesn't match
            </td>
        </tr>
        <tr>
            <td>
                <p>
                    <button (click)="submitData()">Submit</button>
                </p>
            </td>
        </tr>
    </table>
</form>