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by ef4
4698 days ago
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I have a rich, client-side, fully-offline-capable javascript application. I started out with a different language for the backend, but over time the benefit of switching to Node and sharing one codebase became overwhelming. Just to give one example: any data query can get answered locally or from the server, depending on what's already cached and whether you're online. Before, I had to implement every call twice and make sure they stayed in sync. Now I can implement once and run the same code in both places. And other interesting possibilities open up. The server can just run the client's data synchronization code to pull changes from another server, giving realtime server-to-server replication nearly "for free". |
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I'm working on a webapp that mimics functionality of an existing desktop application -- mostly as a self-educational project. As I'm writing it and adding features, I can push processing from server-side to client-side and vice versa with hardly more than a copy and paste of the relevant chunk of code.
Say I don't really care about the security of some particular process, and I really don't want to use up any additional resources on the server for it, I can just push that load to the client browser in a couple clicks.
Did I just write some feature into the client that I suddenly realize presents a security problem? With node, there's no need to change my frame of mind or rethink how to do something in a different language -- just copy and paste from client.js to server.js and do some slight cleanup.