# Javascript: Selection.getFontSize Method

> Gets the font's size, in points, of the selected text.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 26.0
- **Path:** TX Text Control .NET Server > Reference > JavaScript API > Javascript: Selection.getFontSize Method
- **335 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/selection/getfontsize-method/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/selection/getfontsize-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/selection/getfontsize-method/llms-full.txt

---

### Description

Gets the font's size, in points, of the selected text.

### Syntax

```javascript
<void> Selection.getFontSize(<RequestNumberCallback> callback, [<ErrorCallback> errorCallback])
```

### Parameters

| Parameter | Description |
|---|---|
| callback | Receives the the fontsize attribute of the selected text. The property's default value is 10 points, which equals 200 twips. The property returns its default value when the text selection contains multiple characters with mixed font sizes. |
| errorCallback | Optional. Is called when the operation failed with an error. |

### Examples

The following example demonstrates `Selection.getFontSize` in a practical document-editing workflow. It gets the font's size, in points, of the selected text.

```javascript
function onTxError(error) {
    console.error("TX Text Control error:", error.msg);
    error.handled = true;
}

TXTextControl.selection.getFontSize(
    function(result) {
        console.log("get font size result:", result);
    },
    onTxError
);
```

---

## Nearby

- **Previous:** [Javascript: Selection.getFontName Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/selection/getfontname-method/llms-full.txt)
- **Next:** [Javascript: Selection.getForeColor Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/selection/getforecolor-method/llms-full.txt)