Use placeholder option to set placeholder for select input. staff Just follow the following steps and how to create multi-select dropdown in react js app: Step 1 Create New React App Step 2 Install React-Select and Bootstrap 4 Step 3 Create Multi-Select Dropdown Component Step 4 Add Component in App.js Step 1 Create New React App I tried your code but the selected attribute works fine for me. SelectPure is a pure JavaScript library for creating single or multiple elegant controls with support for auto-completion and dynamic data rendering. documentation. not selected from the choices dropdown). commented 2 years ago, Can't you use 'keyup' function on autocomplete input? Bootstrap multiselect -->