TypeScript encounters difficulty locating the div element

Recently attempted an Angular demo and encountered an error related to [ts] not being able to locate a div element.

import { Component } from "@angular/core";
import { FormControl } from "@angular/forms";

@Component({
selector: "main",
template: '
    <div>
        <label for="first-name-input">First Name:</label> 
        <input type="text" [formControl]="firstNameInput"
    </div>',
})
export class AppComponent {

public firstNameInput: FormControl = new FormControl("");
public lastNameInput: FormControl = new FormControl("");

public message: string = "Hello World!";

}

Currently using Core2.0 alongside the latest Angular version. Any insights on the code snippet above?

Below is the content of tslint.json:

{
"extends": "tslint:latest",
"rules": {
    "arrow-parens": true,
    "interface-name": [ true, "never-prefix" ],
    "curly": true,
    "no-var-requires": false,
    "no-string-literal": false,
    "no-console": [ false ],
    "object-literal-sort-keys": false,
    "ordered-imports": [ false ]
},
"jsRules": {
    "curly": true
},
"rulesDirectory": []

}

This marks my initial encounter with TypeScript and Angular.

Answer №1

The reason for this issue is the use of single quotes around your multi-line template string. When single quotes are used, the string cannot span multiple lines and ends at the first line break, causing confusion with variable references.

To resolve this problem, you can opt for back ticks (`) instead of single quotes. Back ticks allow for the creation of template strings that can extend across multiple lines without issues. It is important to note that within back ticks, expressions enclosed in ${...} will be evaluated, allowing for dynamic content like ${text} if 'text' is a defined variable or even more complex expressions like ${text.toUpperCase() + othertext}.

Answer №2

This mistake stems from a syntax error in the code. To correct it, the template should be defined as a multiline string literal enclosed by backticks (`) rather than single quotes.

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