Variable in alert controller

Hello, I want to pass a variable in an alert like this :

  const alert = this.alertCtrl.create({
      title: 'Welcome'    ********My variable here*************,       
      message: 'Do you agree to use this lightsaber to do good across the intergalactic galaxy?',
      buttons: [
          text: 'Disagree',
          handler: () => {
            console.log('Disagree clicked');
          text: 'Agree',
          handler: () => {
            console.log('Agree clicked');

I try this with :

Welcome ${profile.firstName} ${profile.LastName} !


'Welcome ' + profile.firstName + ' ' + profile.lastName + ' !'

but I have trouble doing it, someone knows how to do it please ?

Thanks in advance

What does this mean? The second way looks fine. Though I wouldn’t make the title that long. Make the title “Welcome” and the subtitle your string concatenation for example.

ok sorry I just forgot the THIS word on this.profile.firstName

Thank you