# property::exists

[This is preliminary documentation and subject to change.]

Checks whether the specified property exists.

### Usage

`bool property::exists(name)`

### Parameters

Name | Type | Description
--- | --- | ---
name | string | The property to test.

### Return Value

true if the specified property exists; otherwise, false.

### Examples

- Execute a set of tasks if the "build.debug" property exists.

                  <if test="${property::exists('build.debug')}">
                      <echo message="Starting debug build" />
                      <call target="init-debug" />
                      <call target="build" />
                  </if>

### Requirements

Assembly: NAnt.Core (0.91.3881.0)