Allow select All option in Multiselect

will be nice if we have an option in multiselect - ALL pseudo code

if select ALL
     clear current selected items from select
else if Selected any other option
     clear All and set current value to this option

<select>
<option value=0>All</option>
<option value=1>test</option>
<option value=2>test2</option>
<option value=3>test3</option>
<option value=4>test4</option>
</select>

probably something like this will be useful: (add withAll={true})

<Select
               name="myselect"
               multi={true}
               value={this.state.data}
               options={this.state.opts}
               withAll={true}
           />

[AlexEscalante]

Please, have a look if you still need this:

https://medium.com/@alex_escalante/react-select-alloptionoptions-with-a-single-click-1ebf5a33fe31

[esinoner]

I inspired from Alex’s method, but i changed some section of his code. There is a example i prepared, if you still need, you can check.