isFunctionDefined

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isFunctionDefined() Function

• Introduced in version 1.3b51

Checks if a function has been defined using defineFunction(). Returns true(1) if it has, or false(0) if it has not. Returns '2' if the entered function is a built-in MapTool function rather than a user-defined function.

Usage

isFunctionDefined(name)

Examples

[r: isFunctionDefined("fizzlegwip")]

Returns 0.

[h: defineFunction("myNewFunction", "myMacro@token")]

[r: isFunctionDefined("myNewFunction")]

Returns 1.

[r: isFunctionDefined("input")]

Returns 2.

See Also

defineFunction(), arg(), argCount()