JavaScript之函数直接量、匿名函数(function(x,y){}())写法及示例

谁借莪１个温暖的怀抱￠ 2023-10-08 10:58 12阅读 0赞

JavaScript之函数直接量(function(x,y)\{\}())写法和用途，就像java的匿名类一样，定义并立即执行一个函数，并在函数本体中立即得到返回值。

var _0x4818 = ['csKHwqMI', 'ZsKJwr8VeAsy', 'UcKiN8O/wplwMA==', 
    'JR8CTg==', 'YsOnbSEQw7ozwqZKesKUw7kwX8ORIQ==', 'w7oVS8OSwoPCl3jChMKhw6HDlsKXw4s/YsOG', 
    'fwVmI1AtwplaY8Otw5cNfSgpw6M=', 'OcONwrjCqsKxTGTChsOjEWE8PcOcJ8K6', 'U8K5LcOtwpV0EMOkw47DrMOX', 
    'HMO2woHCiMK9SlXClcOoC1k=', 'asKIwqMDdgMuPsOKBMKcwrrCtkLDrMKBw64d', 'wqImMT0tw6RNw5k=', 
    'DMKcU0JmUwUv', 'VjHDlMOHVcONX3fDicKJHQ==', 'wqhBH8Knw4TDhSDDgMOdwrjCncOWwphhN8KCGcKqw6dHAU5+wrg2JcKaw4IEJcOcwrRJwoZ0wqF9YgAV',
     'dzd2w5bDm3jDpsK3wpY=', 'w4PDgcKXwo3CkcKLwr5qwrY=',
      'wrJOTcOQWMOg', 'wqTDvcOjw447wr4=', 'w5XDqsKhMF1/', 'wrAyHsOfwppc',
       'J3dVPcOxLg==', 'wrdHw7p9Zw==', 'w4rDo8KmNEw=',
        'IMKAUkBt', 'w6bDrcKQwpVHwpNQwqU=', 'd8OsWhAUw7YzwrU=', 'wqnCksOeezrDhw==', 
        'UsKnIMKWV8K/', 'w4zDocK8NUZv', 'c8OxZhAJw6skwqJj', 'PcKIw4nCkkVb', 
        'KHgodMO2VQ==', 'wpsmwqvDnGFq', 'wqLDt8Okw4c=', 'w7w1w4PCpsO4wqA=', 
        'wq9FRsOqWMOq', 'byBhw7rDm34=', 'LHg+S8OtTw==', 'wqhOw715dsOH', 
        'U8O7VsO0wqvDvcKuKsOqX8Kr', 'Yittw5DDnWnDrA==', 'YMKIwqUUfgIk', 'aB7DlMODTQ==',
         'wpfDh8Orw6kk', 'w7vCqMOrY8KAVk5OwpnCu8OaXsKZP3DClcKyw6HDrQ==', 
         'wow+w6vDmHpsw7Rtwo98LC7CiG7CksORT8KlW8O5wr3Di8OTHsODeHjDmcKlJsKqVA==',
          'NwV+', 'w7HDrcKtwpJawpZb', 'wpQswqvDiHpuw6I=', 'YMKUwqMJZQ==', 
          'KH1VKcOqKsK1', 'fQ5sFUkkwpI=', 'wrvCrcOBR8Kk', 'M3w0fQ==', 'w6xXwqPDvMOFwo5d'];
    (function(_0x4c97f0, _0x1742fd) {
        console.log("Array Length ="+_0x4818.length);
        console.log(_0x4c97f0[_0x1742fd])
    }(_0x4818, 0x2E));

上面的返回值为下图内容：匿名函数形参： (\_0x4c97f0, \_0x1742fd)，实参：(\_0x4818, 0x2E)，\_0x4818为一长度56的字符串大数组，实参0x2E =十进制46，结果打印出\_0x4818\[46\]的值，因为String下标均为0，所以打印出来的是第45条内容

![20191219230602387.png][]

想了解更多js function详情可见我的另一篇博客文章

[https://blog.csdn.net/wh445306/article/details/103624381][https_blog.csdn.net_wh445306_article_details_103624381]

[20191219230602387.png]: https://img-blog.csdnimg.cn/20191219230602387.png
[https_blog.csdn.net_wh445306_article_details_103624381]: https://blog.csdn.net/wh445306/article/details/103624381