我有一系列图像

var moniqueThumbs = document.getElementsByClassName('moniqueThumbs');


现在我使用点击功能来选择被点击的元素。

for (var i = 0; i < moniqueThumbs.length; i++) {

    moniqueThumbs[i].addEventListener("click", grabBigImgPath);
}


现在如何保存单击项的当前索引?

function grabBigImgPath() {
var currentItemclicked=this;
}


我的意思是保存currentItemclicked的索引???

最佳答案

您可以使用类似



var moniqueThumbs = [].slice.call(document.getElementsByClassName('moniqueThumbs')); //using the slice to convert the HTMLCollection to a real array

for (var i = 0; i < moniqueThumbs.length; i++) {

  moniqueThumbs[i].addEventListener("click", grabBigImgPath);
}

function grabBigImgPath() {
  var index = moniqueThumbs.indexOf(this)
    //then use the Array.indexOf() to get the index
  snippet.log('clicked: ' + index)
}

<!-- Provides the `snippet` object, see http://meta.stackexchange.com/a/242144/134069 -->
<script src="http://tjcrowder.github.io/simple-snippets-console/snippet.js"></script>

<div class="moniqueThumbs">1</div>
<div class="moniqueThumbs">2</div>
<div class="moniqueThumbs">3</div>
<div class="moniqueThumbs">4</div>
<div class="moniqueThumbs">5</div>

10-05 21:59