Leveraging string interpolation within innerHTML in an Angular application

I'm in the process of creating a game where players need to fill in blanks within dynamically generated statements. To achieve this, I require string interpolation to capture user input and dynamic innerHTML as the blanks can be positioned anywhere within the statement.

For clarity, here are some relevant code snippets:

app.component.html

<input type="range" step="1" min="0" max="100" class="slider 
       (input)="sliderMoved($event)">

<div class="question" [innerHTML]="questionStatement"></div>

app.component.ts

display=50;

questionStatement='<div class="percent">{{display}}%</div> 
                   of Americans have a university degree.'

questionStatementExample2='Canada is <div class="percent">{{display}}%</div> 
                           the size of America.'

sliderMoved(event: any) {this.display=event.target.value;}  

The questionStatement may contain

<div class="percent">{{display}}%</div>
anywhere within the sentence, hence the requirement for a dynamic entry point.

Unfortunately, using string interpolation ({{display}}) within innerHTML does not yield the desired results. Instead, it displays {{display}} literally on the screen. What approach should I take in this scenario?

Answer №1

Using template literals can be a solution in this case. By adjusting your component as shown below, you should be able to resolve the issue.

app.component.ts

display = 50;

questionStatement = `<div class="percent">${this.display}%</div> of Americans have a university degree.`

sliderMoved(event: any) {
    this.display=event.target.value;
    this.questionStatement = `<div class="percent">${this.display}%</div> of Americans have a university degree.`
}

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