---
title: "toLong"
description: "Tries to coerce value into a long (64-bit integer)."
---

# toLong

> Tries to coerce value into a long (64-bit integer).

**This function is used by Ignition's Expression language**.

## Description
Tries to coerce value into a long (64-bit integer). If value is a number, the conversion is direct. If value is a string, it is parsed to see if it represents a long. If not, type casting fails. Will round if appropriate.

## Syntax
`toLong(value, [failover])`

### Parameters

| Type | Parameter | Description |
|---|---|---|
| Object | `value` | The value to type cast. |
| Object | `failover` | The failover value if type casting fails. [optional] |

### Results
**Long** - The value type cast as a long.

## Examples
```python title="Code Snippet"
toLong("38") //returns 38
```
```python title="Code Snippet"
toLong("33.9") //returns 34
```
```python title="Code Snippet"
toLong({Root Container.TextField.text}, -1) //returns the value in the text box as an long, or -1 if the value doesn't represent a number.
```