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JS simple expansion and closing switching code_javascript skills

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Release： 2016-05-16 18:29:28

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The first method: The principle is relatively simple by judging whether it is currently hidden or displayed, and use this to judge.

[Ctrl A Select all Note: If you need to introduce external Js, you need to refresh to execute

]

The second type : It’s simpler, but the principle is not obvious at a glance
Friends who can explain it in detail can leave a message and we will add more

jb51.net welcomes you
[Ctrl A select all Note:

If you need to introduce external Js, you need to refresh to execute ]

Related labels：

js closure Expand

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