var overrideField = document.querySelectorAll('.form_style_override_field');
overrideField.forEach(function (e) {
e.parentNode.parentNode.remove();
});
我正在尝试学习vanilla javascript并尝试删除由classname提取的元素。
var overrideField = document.getElementsByClassName('form_style_override_field');
for (var i = 0; i < overrideField.length; i++)
{
var controlGroup = overrideField[i].parentNode.parentNode;
controlGroup.remove();
}
var overrideField = document.getElementsByClassName('form_style_override_field');
for (var i = 0; i < overrideField.length; i++)
{
var controlGroup = overrideField[i].parentNode.parentNode;
controlGroup.remove();
}
<div class="tab-pane active show" id="general">
<div class="control-group">
<div class="control-label">Label 1</div>
<div class="controls">
<span class="form_style_override_field"></span>
Control Group 1
</div>
</div>
<div class="control-group">
<div class="control-label">Label 2</div>
<div class="controls">
<span class="form_style_override_field"></span>
Control Group 2
</div>
</div>
</div>
overrideField变量看到2个元素,它只会删除最后一个元素。任何人都可以帮我解决一下。
谢谢!
getElementsByClassName
返回一个实时集合,因此当你在for循环中删除一个元素时,集合(和长度)会发生变化,所以你的循环永远不会到达最后一个元素。使用querySelectorAll
来返回静态集合,然后删除元素。
例如:
var elems = document.querySelectorAll('.class-to-remove');
elems.forEach(function(elem) {
elem.remove();
});