# Template Strings

### Exemple

```javascript
const appName = 'Wishtack';
const userName = 'Foo';
const greetings = `Hi ${userName},
Welcome to ${appName}!`

console.log(greetings);

// Result:
// Hi Foo,
// Welcome to Wishtack!
```

{% hint style="danger" %}

## Vulnérabilité Sécurité

N'utilisez jamais les template strings comme outil de templating HTML.\
Cela vous expose à des vulnérabilités de type XSS *(Cross-Site Scripting)*.

**Exemple :**

```javascript
/* userName is dynamically retrieved from malicious source:
 * query string, api, storage etc... */
const userName = '<img src=404 onerror=alert(1)>'; 
document.body.innerHTML = `<span>Hi ${userName}</span>`
```

{% endhint %}


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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://guide-angular.wishtack.io/ecmascript-6+/template-strings.md?ask=<question>
```

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The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.