我如何通过JS在通过输入传递的字符串上用-替换+？

我又如何在同一张表中打开“ window.open”？

谢谢！

<div id="formBusca" style="display: none; position: absolute; z-index: 999; right: 30px;">
<form class="form-inline"  onsubmit="buildurl()">
<input id="campoPes" style="box-shadow: 0 4px 8px 0 rgba(0,0.2),0 6px 20px 0 rgba(0,0.19); margin-top: -8px" type="text" class="form-control" name="campoPes" placeholder="Faça sua busca...">
<button style="box-shadow: 0 4px 8px 0 rgba(0,0.19); margin-left: 5px; margin-top: 0px" type="submit" class="btn btn-primary mb-2">Buscar</button>
</form>          </div>
        </div>        
      </div>
    </div>

<script type="text/javascript">
    function buildurl() {
        var searchText = document.getElementById("campoPes");
        window.open("https://gazetadocerrado.com.br/?s=" + searchText.value);
    }
</script>