ThrowError

Type

statement

Summary

Causes an error to be raised.

Syntax

throw <errorString>

Description

The throw statement causes an error to be raised. This causes execution to terminate, and the error is passed back to environment.

The Error expression must be an expression that evaluates to a string. Note:There is currently no try / catch mechanism in LiveCode Builder, so throwing an error will cause the error to be raised in LiveCode Script in the appropriate context.

Parameters

Name	Type	Description
errorString	string	The error to throw.

Examples

	variable tVar as optional number
	put "Z" parsed as string into tVar
	if tVar is not defined then
		throw tVar && "is not a number
	end if

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