我可以替换像removeChild这样的标准DOM函数吗？ [英] Can I replace s standard DOM functions like removeChild?

问题描述

在将一些节点从父节点中删除之前，我可以替换像removeChild这样的标准DOM函数来显示例如警报吗？类似的东西，但我的例子有错误

Can I replace s standard DOM functions like removeChild to show for example alert before some node removed from parent? Something like that but my example is with errors

var original = node.removeChild;
node.removeChild = function(node, original){
    alert('message');
    original(node);
}

推荐答案

如果你想申请这个整个文档执行此操作

If you want to apply this across the document do this

var original = Node.prototype.removeChild;
Node.prototype.removeChild = function(node) {
    //custom logic
    original.apply(this, arguments);
}

如果您只想将更改应用于所选节点，那么

If you want to apply the change only to a selected node then

var original = node.removeChild;
node.removeChild = function(node){
    //custom logic
    original.apply(this, arguments);
}

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