# integer.from_hex · Rell standard library · Chromia Docs (concept)

> pure static function from_ hex(value: text ): integer Parse an unsigned hexadecimal text representation of an integer. Base prefixes are not supported, so 

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/root/integer/from_hex/

FUNCTION

# integer.from\_hex

```signature
pure static function from_hex(value: text): integer
```

Parse an unsigned hexadecimal text representation of an integer.

Base prefixes are not supported, so one must write e.g. `integer.from_hex('CAFE')` rather than
`integer.from_hex('0xCAFE')`.

Case is ignored, i.e. `integer.from_hex('CAFE')` and `integer.from_hex('cafe')` are equivalent.

**Parameters**

* **value** — the hexadecimal text to be parsed

**Throws**

* `exception` — if the text representation is ill-formed

Since 0.9.0

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