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Testing for presence of an array?

Message

From

04/05/2005 19:21:10

Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivia

To

04/05/2005 19:18:37

Randy Waldman
Hoffer Companies
Houston, Texas, United States

General information

Forum:

Visual FoxPro

Category:

Coding, syntax & commands

Title:

Re: Testing for presence of an array?

Environment versions

Visual FoxPro:

VFP 7 SP1

OS:

Windows XP SP2

Network:

Windows 2000 Server

Database:

Visual FoxPro

Miscellaneous

Thread ID:

01011099

Message ID:

01011101

Views:

15

>Hi. How do you test for the presence of an array?
>
>Thanks, Randy

I think it is something like this:

if type("MyVar") # "U"
  * The variable or array exists
endif

if type("MyVar(1)") # "U"
  * The variable exists, and is an array
endif

You might also test with vartype() (without the quotation marks), which is supposed to be faster.

Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)

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