Be careful with DD {{ }}

[Thomas Arneson]

I spent a fair bit of time tracking down a problem caused by assuming DD was creating verbs, when it was not. Now I use abc=: {{)m if I don't have y in the definition.

[Viktor Grigorov]

Pardon, I thought verbs cannot be created easily. Is Your issue with it that it lacks description of something more fundamental? 


Aug 7, 2026, 04:05 by t...@tomarneson.com:

> I spent a fair bit of time tracking down a problem caused by assuming DD was creating verbs, when it was not. Now I use abc=: {{)m if I don't have y in the definition.
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[Henry Rich]

I have added a bit to the Wiki page.  Would that have helped?  Feel free to add more.

Henry Rich

On 8/6/2026 9:05 PM, Thomas Arneson wrote:

I spent a fair bit of time tracking down a problem caused by assuming DD was creating verbs, when it was not. Now I use abc=: {{)m if I don't have y in the definition.

[Thomas Arneson]

I likely used m as a noun in the code so I got an adverb, not verb. Now that it happened to me twice, I think I can avoid it, or at least track it faster with using 5!:5 < to check the supposed verb that's not working. Thanks, Henry.