Using typescript to create HTML using template

Question

Trying out typescript, I want to achieve the following thing:

Getting a question text and a number from server and displaying it in DOM somewhere, using typescript.

Currently I have the following .ts file:

class QuestionResponse {
    constructor(public questionText, public questionNumber) {
    }
}
function questioner(question: QuestionResponse) {

    return '<div data-val-id="${QuestionNumber}"> ${QuestionText} </div>';
}

var testQuestion = new QuestionResponse("Question text number 5", 5);

//this will be replaced by .innerHTML of some element:
alert(questioner(testQuestion));

This does not replace the ${QuestionNumber} with the question.QuestionNumber... nor the Text. I don't want to use string appends, I want to use clean html, preferably on a seperate .html file.

Basically I'm asking: Is it possible using typescript, if yes, how? If not, what would be the best practice way to achieve this using angularjs? (but still using typescript)

Answer 1

The correct syntax is:

function questioner(question: QuestionResponse) {
    return `<div data-val-id="${question.questionNumber}"> ${question.questionText} </div>`;
}

The important part here is the usage of ` (backquote/backtick)
Wrap your string with ` instead of " and ' to make use of the ${} syntax.

This is a TypeScript (and ES6) feature.