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Code Issues Releases Wiki Activity

Tweaks to #1678

This commit is contained in:
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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2
core/modules/widgets/vars.js
View File

@ -3,7 +3,7 @@ title: $:/core/modules/widgets/vars.js
type: application/javascript
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!

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