如何从JavaScript对象中删除属性？ [英] How do I remove a property from a JavaScript object?

问题描述

假设我按如下方式创建对象：

Say I create an object as follows:

var myObject = {
    "ircEvent": "PRIVMSG",
    "method": "newURI",
    "regex": "^http://.*"
};

删除房产的最佳方式是什么正则表达式最终得到新的 myObject ，如下所示？

What is the best way to remove the property regex to end up with new myObject as follows?

var myObject = {
    "ircEvent": "PRIVMSG",
    "method": "newURI"
};

推荐答案

喜欢这样：

delete myObject.regex;
// or,
delete myObject['regex'];
// or,
var prop = "regex";
delete myObject[prop];

演示

var myObject = {
    "ircEvent": "PRIVMSG",
    "method": "newURI",
    "regex": "^http://.*"
};
delete myObject.regex;

console.log(myObject);

对于有兴趣阅读更多相关信息的人，Stack Overflow用户 kangax 写了一篇关于 delete 的非常深入的博客文章声明在他们的博客上 了解删除 。强烈推荐。

For anyone interested in reading more about it, Stack Overflow user kangax has written an incredibly in-depth blog post about the delete statement on their blog, Understanding delete. It is highly recommended.

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