# url.query

## Function

Read the query parameter object of the current URL.

## Syntax

```bt
url(text).query()
```

## Parameters

None.

## Return value

| Type | Description |
| ------ | ------ |
| Object | Returns the query parameter dynamic key value object. See below for field rules. |

## Return object fields

| Field | Type | Must exist | Description |
| ------ | ------ | ------ | ------ |
| Any query parameter name | String | No | URL decoded query parameter value. When the parameter does not exist, the field does not exist, and the read result is `empty`. |

## Code Example

```bt
query = url('https://btlang.org/docs?q=BT%20Lang').query()

// Output: BT Lang
print query.q
```

## Notes

- The value that appears after a repeated parameter name overwrites the previous value.
- Returns an empty Object if there is no query string.