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Code Issues Releases Wiki Activity

Tweaks to #1678

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Jermolene 2015-05-07 19:44:08 +01:00
parent e93d32cdd7
commit 42a3e31b1b
2 changed files with 7 additions and 9 deletions
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core/modules/widgets/vars.js
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@ -3,7 +3,7 @@ title: $:/core/modules/widgets/vars.js
type: application/javascript type: application/javascript
module-type: widget module-type: widget
This widget allows the user to set multiple variables in one go. This widget allows multiple variables to be set in one go:
``` ```
\define helloworld() Hello world! \define helloworld() Hello world!

14
editions/prerelease/tiddlers/VarsWidget.tid
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@ -6,15 +6,14 @@ caption: vars
! Introduction ! Introduction
The ''vars'' widget allows you to set multiple variables in one go. It thereby reduces code complexity that would arise when setting The ''vars'' widget allows multiple variables to be set in one operation. In some situations it can result in simpler code than using the more flexible SetWidget.
many variables using the [[SetWidget]].
! Content and Attributes ! Content and Attributes
The content of the `<$vars>` widget is the scope for the value assigned to the variable. The content of the `<$vars>` widget is the scope for the value assigned to the variable.
|!Attribute |!Description | |!Attribute |!Description |
|//{attributes not starting with $}// |Each attribute name specifies a variable name. The attribute value is used as variable assignement | |//{attributes not starting with $}// |Each attribute name specifies a variable name. The attribute value is assigned to the variable |
! Examples ! Examples
@ -30,7 +29,7 @@ Using the `<$vars>` widget, this situation may be handled in the following way:
</$vars> </$vars>
``` ```
In contrast, here is the same example, but using the `<$set>` widget instead: In contrast, here is the same example using the `<$set>` widget:
``` ```
<$set name="greeting" value="Hi" /> <$set name="greeting" value="Hi" />
@ -42,11 +41,10 @@ In contrast, here is the same example, but using the `<$set>` widget instead:
</$set> </$set>
``` ```
! Remarks ! Remarks
It should be noted that this widget differs from the set widget in the following ways: It should be noted that this widget differs from the set widget in the following ways:
* You cannot specify a fallback (also known as "emptyValue") * A fallback (also known as "emptyValue") cannot be specified
* You cannot use a filter to produce a conditional variable assignement * Filters cannot be used to produce a conditional variable assignement
* Variable names must be literal strings