javascript - 如何使用 JavaScript 访问 HTML 子笔记

Question

我有这样的布局，我需要到达 AreaForMapsn 节点并隐藏它们

这是我的 HTML:

<div id="layout1" class="layout1_wrapper">

    <div class="grid">
        <div class="block">
            <div id="AreaForMaps1" name="AreaForMaps1">
                <div id="googlemaps1">
                </div>
            </div>
        </div>
    </div>

    <div class="grid">
        <div class="block">
            <div id="AreaForMaps2" name="AreaForMaps2">
                <div id="googlemaps2">
                </div>
            </div>
        </div>
    </div>

    <div class="grid">
        <div class="block">
            <div id="AreaForMaps3" name="AreaForMaps3">
                <div id="googlemaps3">
                </div>
            </div>
        </div>
    </div>

</div>

JavaScript:

<script>
document.getElementById("Button").onclick = function(){  
//need to reach all AreaForMapsXXX divs and hide them  
var myDiv = document.getElementById( "layout1" );
var children = document.getElementById(layout1).childNodes;

  for(i=0; i<children.length; i+=3) { 
    document.getElementById(children[i].id).style.display = "none";
  }  
}
</script>

Answer 1

一种可能的方法是向所有这些添加一个类，例如“AreaForMaps”，然后简单地使用 document.getElementsByClassName (或 jQuery 或您正在使用的任何内容)。