为什么还会触发两次 console.log 呢？ - V2EX
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vianEm
V2EX    Javascript

为什么还会触发两次 console.log 呢？

  •   
  •   vianEm 2019-06-06 12:03:11 +08:00 2957 次点击
    这是一个创建于 2352 天前的主题，其中的信息可能已经有所发展或是发生改变。
    STATE = false; $('#someBtn').click(function(){ if (STATE) { return; } STATE = true; console.log('click'); })
  • State
  • console
  • log
  • click'
    5 条回复    2019-06-06 23:06:58 +08:00
    alan0liang
        1
    alan0liang  
       2019-06-06 15:02:32 +08:00 via Android
    为啥在 0x10c 节点？
    alan0liang
        2
    alan0liang  
       2019-06-06 15:03:05 +08:00 via Android
    给个截屏？
    uTOmOuk3L6sb4MSI
        3
    uTOmOuk3L6sb4MSI  
       2019-06-06 15:15:09 +08:00
    可能你绑定了两次
    vianEm
        4
    vianEm  
    OP
       2019-06-06 20:41:00 +08:00 via iPhone
    @ODD10 是的 ^_^
    uTOmOuk3L6sb4MSI
        5
    uTOmOuk3L6sb4MSI  
       2019-06-06 23:06:58 +08:00 via iPhone
    https://i.loli.net/2019/06/06/5cf92bd97321485198.png
    chrome 开发工具可以查看 dom 绑定的事件。多次绑定就会出现几次。
    学会使用 chrome 开发工具吧
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