> For the complete documentation index, see [llms.txt](https://docs.cheddar.vihan.org/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cheddar.vihan.org/docs/default-operators/what-is.md).

# What Is

## Syntax

```
what is obj
```

## Explanation

Returns the constructor of the given operand.

## Examples

```
what is 123 == Number
```

> ### Note::Note
>
> If you make a `what is love` joke, no, you are not the first. [I was](http://chat.stackexchange.com/transcript/240?m=31245092#31245092)