Javascript-website Article version history function implementation

A common feature of the History version of the article, such as zhihu, jianshu, and segmentfault, has the storage of the relevant historical version. How to implement this is a reference or url. A common feature of the History version of the article, such as zhihu, jianshu, and segmentfault, has the storage of the relevant historical version. How to implement this is a reference or url.

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A common feature of the History version of the article, such as zhihu, jianshu, and segmentfault, has the storage of the relevant historical version. How to implement this is a reference or url.

When the database stores content, you only need to add a version number field. Insert a new record for each update.

The simplest implementation method of this item is similar to that mentioned above. Add a version number. A new data entry is created during the update.
Of course, this will increase the space usage.
Another method is to mark subnodes and store them in a data structure.
This method occupies a small amount of resources and is convenient and quick to use xml. (Of course, json can also be used for structure ).
But it is not recommended. This method will cause a big problem if you are not careful.