let search = document.getElementById('search') function getSearch() { } search.addEventListener("submit", getSearch, false)
<form id="form"> @csrf <div class="input-group input-group-sm"> <input type="text" name="search" class="form-control"> <span class="input-group-append"> <button id="search" type="button" class="btn btn-info btn-flat">Поиск</button> </span> </div> </form>