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JavaScript学习笔记

  • 2026-04-24 18:02:38
JavaScript学习笔记

JavaScript是一种轻量级的解释型编程语言，主要用于网页交互。今天学习了ES6的新特性，包括箭头函数、解构赋值和Promise对象。箭头函数可以简化函数的写法，并且不绑定this，这在回调函数中非常有用...

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  1. 请求信息 : 2026-04-24 22:23:49 HTTP/2.0 GET : https://67808.cn/a/483568.html
  2. 运行时间 : 0.209312s [ 吞吐率：4.78req/s ] 内存消耗：4,434.52kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=cea0516c6dd06bf34b628346d8cb00de
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  1. CONNECT:[ UseTime:0.000784s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000741s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.005165s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.013002s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000580s ]
  6. SELECT * FROM `set` [ RunTime:0.002709s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000638s ]
  8. SELECT * FROM `article` WHERE `id` = 483568 LIMIT 1 [ RunTime:0.002585s ]
  9. UPDATE `article` SET `lasttime` = 1777040629 WHERE `id` = 483568 [ RunTime:0.004050s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000259s ]
  11. SELECT * FROM `article` WHERE `id` < 483568 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000670s ]
  12. SELECT * FROM `article` WHERE `id` > 483568 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001133s ]
  13. SELECT * FROM `article` WHERE `id` < 483568 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.015050s ]
  14. SELECT * FROM `article` WHERE `id` < 483568 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002097s ]
  15. SELECT * FROM `article` WHERE `id` < 483568 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001799s ]
0.213002s