CODE EXAMPLE FOR JAVASCRIPT

picker change event react native

 <Picker
        selectedValue={selectedValue}
        style={{ height: 50, width: 150 }}
        onValueChange={(itemValue, itemIndex) => setSelectedValue(itemValue)}
      >
        <Picker.Item label="Java" value="java" />
        <Picker.Item label="JavaScript" value="js" />
      </Picker>