How to set selected programmatically

[monicai18n]

I will be getting some form data and would like to set the data in the react state. Once I have the value in the state how can I set selected
programmatically in react-select on single select and multi select.

I also tried something like this in render:
getOptionValue={this.getOptionValue}

function:
getOptionValue = option => option.key;

and setting value like this in the state: let newValue = {value:'Buggy'};

But the option does not get selected.

Thank you!

[DanishOnGit]

Here is how I did it:
Below u can control the value of the value prop using some state value.
The thing is that I passed an options array and chose a value from that array!
`

const dummy=[{label:'Grade A',value:'Grade 10-A'}]

<Select
components={{ IndicatorSeparator: () => null }}
value={dummy[0]}
controlShouldRenderValue={true}
placeholder='All Classrooms'
className='classHome-select'
classNamePrefix='classHome-select'
styles={newStyles}
options={dummy}
onChange={(batch, action) => {

        }}          
        />`