# JS-rendered sites
Most modern webpages are dynamically adding elements or data to the DOM by the use of Javascript. Some even are single-page-applications (SPA) build with React.js, Vue.js, Angular, etc - that in turn means nearly the whole DOM is rendered by Javascript that has to be interpreted by a Javascript engine (usually your Browser).
**Skrape{it}**'s default mode is making simple HTTP requests - and thereby it's not possible to scrape JS driven websites in default mode.
{% hint style="info" %}
**Request option `mode = Mode.DOM` for the win!**
When using **skrape{it}**'s DOM mode it emulates to be a real browser, executes the pages Javascript and returns a parsed representation of a website. It supports parsing of client side rendered markup (thereby it's possible to scrape or parse websites that uses React.js, Vue.js, Angular, jQuery and so on). The DOM mode will use the latest Chrome engine to render the page, therefore it provides support for ES6 and modern Javascript features.
:bulb: Keep in mind: ***Because of the browser emulation it is not as fast as the default mode!***
{% endhint %}
## Example
**Let's assume a pretty basic scenario. We want to make a request to a website that is rendering data via Javascript. For instance it's markup could look like this - that is adding an extra div element including some text.**
{% code title="Example Markup that renders elements via Javascipt" %}
```markup
i'm the title
i'm the body
i'm the headline
i'm a paragraph
i'm a second paragraph
```
{% endcode %}
{% code title="How to scrape client-side rendered DOM elements" %}
```kotlin
fun main() {
val scrapedData = skrape {
url = "http://some.url"
mode = Mode.DOM // <--- here's the magic
extract {
div {
withClass = "dynamic"
findFirst { text }
}
}
}
println(scrapedData)
}
```
{% endcode %}
{% code title="Will print extracted data to the console" %}
```bash
> I have been dynamically added via Javascript
```
{% endcode %}
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.skrape.it/docs/1.0.x/dsl/extract-client-side-rendered-data.md?ask=
```
The question should be specific, self-contained, and written in natural language.
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.