TypeScript - Angular: Multiline string

I'm an Angular 2 beginner and I've written this piece of code in my dev/app.component.ts:

import {Component} from 'angular2/core';

@Component({
selector: 'my-app',
template: '<h3 (click)="onSelect()"> {{contact.firstName}} {{content.lastName}}</h3>'
})
export class AppComponent {
public contact = {firstName:"Max", lastName:"Brown", phone:"3456732", email:"max88@gmail.com"};

public showDetail = false;
onSelect() {
this.showDetail=true;
}
}


It works, when I go to the browser "Max Brown is displayed".

Now, I want to write the template part on different lines like this:

import {Component} from 'angular2/core';

@Component({
selector: 'my-app',
template: '<h3 (click)="onSelect()">
{{contact.firstName}} {{contact.lastName}}<h3>'
})
export class AppComponent {
public contact = {firstName:"Max", lastName:"Brown", phone:"3456732", email:"max88@gmail.com"};

public showDetail = false;
onSelect() {
this.showDetail=true;
}
}


But I get this error in Chrome console:

Uncaught TypeError: Cannot read property 'split' of undefined

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