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22 lines
700 B
Plaintext
22 lines
700 B
Plaintext
created: 20140410103123179
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modified: 20140410103123179
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tags: Filters
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caption: previous
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title: FilterOperator: previous
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type: text/vnd.tiddlywiki
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The ''previous'' filter operator takes each tiddler in the current list and looks it up in the `list` field of the tiddler specified in the operand, and then returns the immediately preceding tiddler title.
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The following examples assume a tiddler called `MyList` with a `list` field containing:
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```
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one two three four five
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```
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|!Filter String |!Description |
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|`[[three]previous[MyList]]` |Returns `two` |
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|`[[one]previous[MyList]]` |Returns an empty list |
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|`two four +[previous[MyList]]` |Returns `one`, `three` |
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See also [[FilterOperator: next]].
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