# Examples

## Overview

This page is a repository of minimal example implementations that have been created. You can import these templates and see how a given feature was implemented in the builder.

These get created during support emails. If you need an example created for your situation, please send us an email

### Input must be valid json

#### Description

Textarea w/ custom validation attached to verify the contents is valid json.

{% file src="/files/-MTLm8qsPqIOFIlnscjL" %}

### Set the value of one field using another

#### Description

When the button is clicked on this form, the value from the source field will be copied to the destination.

{% file src="/files/-MTLm8qt9bfwctABSPFR" %}

### Validate dates relative to other dates

3 date inputs w/ attached validation: min, max, in between

{% file src="/files/-MUVIEwHKEJlEAh8Bc0K" %}


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

```
GET https://help.form.io/faq/examples.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.