<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[TheFirstTest的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/TheFirstTest</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; TheFirstTest]]></copyright><item><title><![CDATA[nvm管理node版本时无法识别npm]]></title><link>https://blog.youkuaiyun.com/TheFirstTest/article/details/129363599</link><guid>https://blog.youkuaiyun.com/TheFirstTest/article/details/129363599</guid><author>TheFirstTest</author><pubDate>Mon, 06 Mar 2023 15:33:34 +0800</pubDate><description><![CDATA[nvm管理node版本，无法识别npm]]></description><category></category></item><item><title><![CDATA[js小数指定小数点后位数]]></title><link>https://blog.youkuaiyun.com/TheFirstTest/article/details/122714703</link><guid>https://blog.youkuaiyun.com/TheFirstTest/article/details/122714703</guid><author>TheFirstTest</author><pubDate>Thu, 27 Jan 2022 11:35:03 +0800</pubDate><description><![CDATA[常用的截取两位


let num = 16.36172;

//向下取整
Math.floor(num*100)/100;

//向上取整
Math.ceil(num*100)/100;

//四舍五入
Math.round(num*100)/100;

//四舍五入
num.toFixed(2);

toFixed(四舍五入)


let num = 10.44;

console.log(num.toFixed(1));

//10.5

round(四舍五入)


console.log(Math.]]></description><category></category></item><item><title><![CDATA[sort-对象类数组按指定属性排序]]></title><link>https://blog.youkuaiyun.com/TheFirstTest/article/details/122713701</link><guid>https://blog.youkuaiyun.com/TheFirstTest/article/details/122713701</guid><author>TheFirstTest</author><pubDate>Thu, 27 Jan 2022 11:10:50 +0800</pubDate><description><![CDATA[let arr = [
    {name: "张三", age: 16},
    {name: "李四", age: 17},
    {name: "小明", age: 18},
];
//排序
arr.sort((person1, person2) =&gt; {
    const a = person1["age"];
    const b = person2["age"];
    return b - a;
});

可根据需要对将排序方法进行封装扩展。


let arr = [
  .]]></description><category></category></item><item><title><![CDATA[谷歌浏览器（chrome）跨域设置]]></title><link>https://blog.youkuaiyun.com/TheFirstTest/article/details/122686413</link><guid>https://blog.youkuaiyun.com/TheFirstTest/article/details/122686413</guid><author>TheFirstTest</author><pubDate>Tue, 25 Jan 2022 15:42:11 +0800</pubDate><description><![CDATA[版本号49之前跨域设置

属性页面"目标"中追加 --disable-web-security



版本号49之后跨域设置

1、C盘创建MyChromeDevUserData文件夹

2、属性页面"目标"中追加 --disable-web-security --user-data-dir=C:\MyChromeDevUserData








...]]></description><category></category></item><item><title><![CDATA[parseTime-时间格式化函数]]></title><link>https://blog.youkuaiyun.com/TheFirstTest/article/details/122660821</link><guid>https://blog.youkuaiyun.com/TheFirstTest/article/details/122660821</guid><author>TheFirstTest</author><pubDate>Mon, 24 Jan 2022 09:00:17 +0800</pubDate><description><![CDATA[parseTime(time, pattern) {
      if (arguments.length === 0 || !time) {
        console.warn("未传入正确的时间格式：new Date()!");
        return null;
      }
      const format = pattern || "{y}-{m}-{d} {h}:{i}:{s}";
      let date;
      if (typeof time === "obje.]]></description><category></category></item><item><title><![CDATA[JS颜色随机生成（rgb、rgba、十六进制、格式转换）]]></title><link>https://blog.youkuaiyun.com/TheFirstTest/article/details/121945046</link><guid>https://blog.youkuaiyun.com/TheFirstTest/article/details/121945046</guid><author>TheFirstTest</author><pubDate>Wed, 15 Dec 2021 09:38:56 +0800</pubDate><description><![CDATA[JavaScript颜色，color随机生成]]></description><category></category></item></channel></rss>