show-var ( var -- )
Factor handbook » Developer tools » The listener » Watching variables in the listener

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Vocabulary
listener

Inputs

var	a variable name

Outputs
None

Word description
Adds a variable to the watch list; its value will be printed by the listener after every expression.

Definition

USING: kernel namespaces sequences ;

IN: listener

: show-var ( var -- ) visible-vars [ swap suffix ] change ;