这可以成功运作,

$('[rel=notif]').on({
    mouseenter: function () {
$(this).find('.solnotifkara').css({"opacity":"0.46"});
  },
    mouseleave: function () {
$(this).find('.solnotifkara').css({"opacity":"0.36"});
    }
});


但是,如果将其动态添加,则无法正常工作。我有一个click函数,适用于动态添加的元素,

$(document.body).on('click', '[rel="like"]' ,function(){

alert("works");

});


如何使悬停功能适用于动态添加的元素?

最佳答案

$(document).on({
  mouseenter: function () {
    $(this).find('.solnotifkara').css({opacity:0.46});
  },
  mouseleave: function () {
    $(this).find('.solnotifkara').css({opacity:0.36});
  }
}, "[rel=notif]");  // <<<<< delegate here your dynamic element




$(document).on({
  mouseenter: function () {
    $(this).find('.solnotifkara').css({opacity:0.2});
  },
  mouseleave: function () {
    $(this).find('.solnotifkara').css({opacity:1});
  }
}, "[rel=notif]");  // <<<<< delegate here your dynamic element


// for test only:
$("button").on("click", function(){
  $("body").append('<p><a rel="notif">This is a <span class="solnotifkara">note</span>.</a></p>');
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<button>GENERATE</button>

关于javascript - jQuery悬停功能无法在动态添加的元素上运行,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/39297435/

10-13 08:28