---
url: /process-functions/mapping-delete.md
description: Deletes a mapping with the given name.
---

# mapping.delete

Deletes a mapping with the given name.

```js
mapping.delete(mappingName);
```

#### Parameters

* `mappingName` - An identifier used to find the target mapping.

#### Example

```js
let res = mapping.delete("Time to Year and Month");
```

If a mapping exists with this name the mapping will be deleted and the res variable will be set to `true`.