# Typehead
These are also know as auto-fill input boxes that fills up while you type. This is powered by Bootstrap type-head.
{% hint style="info" %}
You can view there official documentation [here](https://twitter.github.io/typeahead.js/examples/)
{% endhint %}
**Step One**
Include the required javascript files inside the `` before core template script inclusions, if they are not there already.
```markup
```
**Step Two**
Create a simple text box field and give it an ID so you can initialize in your JS file
```markup
```
**Step Three**
Initialize your typehead with the ID you use
```javascript
var countries = new Bloodhound({
datumTokenizer: Bloodhound.tokenizers.whitespace,
queryTokenizer: Bloodhound.tokenizers.whitespace,
prefetch: 'http://pages.revox.io/json/countries-list.json'
});
// passing in `null` for the `options` arguments will result in the default
// options being used
$('#mytyphead').typeahead(null, {
name: 'countries',
source: countries
});
```
---
# 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.pages.revox.io/form-elements/typehead.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.