select2搜索框提示文字placeholder

select2配置时的placeholder是显示在下拉框中的

但是我需要在搜索框中显示提示文字, 百度翻了很久都没有翻到, bing终于翻到了

https://github.com/select2/select2/issues/3362

效果

实现:

select2

<select class="select2-list taxon-select2" name="query[taxon_id_eq]" data-searchplaceholder="搜索分类">

js

$('.select2-list').on('select2:open', (element) => {
    const text = element.currentTarget.dataset.searchplaceholder
    $('.select2-search__field').attr('placeholder', text)
  })