returns a list of all built-in properties in LiveCode.
# Metadata
Platforms: desktop, server, mobile OS: mac, windows, linux, ios, android Introduced: 1.0 Security:
# Syntax
the propertyNames
# Examples
the propertyNames
if it is among the lines of the propertyNames then beep
# Description
Use the propertyNames function to check whether a particular property already exists in LiveCode, to avoid using a reserved word for your own custom property.
The propertyNames function returns all the property that can be used in LiveCode, including synonyms.
# Tags
# See
- **keyword:** line - **property:** properties, customProperties - **function:** constantNames, functionNames, commandNames, colorNames - **glossary:** property, custom property, LiveCode, return, reserved word - **control structure:** setProp, function