# Methods

<table data-full-width="false"><thead><tr><th width="193">Method Name</th><th>Method Description</th></tr></thead><tbody><tr><td>run</td><td>The primary initialization function for Geoflow is responsible for calling getData and running the script extensions (if enabled).</td></tr><tr><td>getData</td><td>Fetches the visitor data properties.</td></tr><tr><td>updateData</td><td>Use this to override any visitor data property, simulating what different visitors may experience on your website.</td></tr><tr><td>displayData</td><td>Output the visitor data properties that are currently available.</td></tr><tr><td>clearData</td><td>Force clear any visitor data properties saved in the browser's session storage. This will not effect the 'geoflow' JS object.</td></tr><tr><td>checkCondition</td><td>Returns a boolean based on the condition and value passed.</td></tr><tr><td>select</td><td>Appends one or more &#x3C;option> elements to a &#x3C;select> element based on the category passed and an optional placeholder.</td></tr></tbody></table>

### Examples

```javascript
// Clear the Current Visitor Data Properties Saved in Session Storage
geoflow.clearData();

// Change the Current Country Code to US (United States)
geoflow.updateData({ countryCode: 'US' });

// Add All Countries to the <select> with an ID of 'choose-country'
geoflow.select('#choose-country', 'all-countries', 'Choose a Country');
```