# json.as_integer_or_null · Rell standard library · Chromia Docs (concept)

> pure function as_ integer_ or_ null(): integer ? Convert this JSON integer value to an integer. All JSON values that can be converted to integer with as_in

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/root/json/as_integer_or_null/

FUNCTION

# json.as\_integer\_or\_null

```signature
pure function as_integer_or_null(): integer?
```

Convert this JSON integer value to an integer.

All JSON values that can be converted to `integer` with `as_integer_or_null()` can also be converted
to `big_integer` with `as_big_integer_or_null()`, though the reverse is not true, since
`big_integer` values may fall outside the `integer` range.

**Returns**

this JSON integer as an integer, or null if this JSON value is not an integer

Since 0.14.16

[View this page on docs.chromia.com](https://docs.chromia.com/pages/rell-stdlib/-rell%20-system%20-library/%5Broot%5D/json/as_integer_or_null.html)Generated API reference, mirrored from the live docs