# text.starts_with · Rell standard library · Chromia Docs (concept)

> pure function starts_ with(prefix: text ): boolean Checks if this text starts with the specified prefix. Note that for all texts t , t.starts_with('') is t

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/root/text/starts_with/

FUNCTION

# text.starts\_with

```signature
pure function starts_with(prefix: text): boolean
```

Checks if this text starts with the specified prefix.

Note that for all texts `t`, `t.starts_with('')` is true, and for all texts `u` and `v` such
that `u == v`, `u.starts_with(v)` is true.

**Parameters**

* **prefix** — the prefix to check

**Returns**

true if this text starts with the specified prefix, false otherwise

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/text/starts_with.html)Generated API reference, mirrored from the live docs