caption: toggle
created: 20201107153758990
modified: 20201109104654310
op-input: a list of items
op-output: the input list with the title specified in the parameter toggled
op-parameter: the <<.op toggle>> operator accepts 1 or 2 parameters, see below for details
op-purpose: toggle the title specified in the operand in the input
tags: [[Filter Operators]] [[Listops Operators]] [[Order Operators]]
title: toggle Operator
type: text/vnd.tiddlywiki

<<.from-version "5.1.23">>

The <<.op search-replace>> operator requires at least one parameter and can accept a second optional parameter:

```
[toggle[<title1>],[<title2>]]
```
* ''title1'' : a title to toggle in the input list. If it is already present, it is removed. Otherwise, it is added.
* ''title2'': (optional). When the second parameter is provided, the operator toggles between the two values in the input list. If neither is present, the first parameter takes precedence is added to the list.


<<.operator-examples "toggle">>