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caption: Variables
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created: 20141002141231992
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modified: 20141018104313995
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tags: WikiText
title: Variables in WikiText
type: text/vnd.tiddlywiki
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! Defining Variables
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Variables contains values defined by [[Widgets]].
Variables are available within the widget that defines them, and the child widgets in the widget tree.
Variables are defined by:
* TiddlyWiki core and viewtemplate
* SetWidget
* ListWidget
* [[Macro definition|Macros in WikiText]]
! Using Variables
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Variables are used in:
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* Variable substitution `$(name)$`
* Concise shortcut `<<name>>`
* [[Filter expression|Introduction to Filters]] `[operator<variable-operand>]`
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* Some default behaviors of [[Widgets]]
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See also [[currentTiddler|WidgetVariable: currentTiddler]] variable, built-in [[variables|Variables]] and [[substitutions in WikiText|Variables, Macros and Substitutions in WikiText]]