JavaScript Legacy Code

Jason Gorman demonstrates a process for changing legacy code safely that, over time, can also bring down the cost of changing that code base.

[grzegorzg]

I'm surprised you don''t have any comments. This is perfect, thank you very much for putting it together :)

[CoredusK]

This is really good! Mostly wondering if a function goes through many "outside world" layers, as in, calling multiple functions that each might call external API, call AI service, call DB.. It's not even that straightforward to set up the black box test to begin with.

[CoredusK]

Also wondering if this is even possible without OO -- haven't really seen too many examples of that, but most JS code I've worked on isn't embracing OO.

[brentmarquez]

very happy to find this. I am working with a legacy application and am trying to figure out how I might implement Node.js with it. (It's just HTML, JavaScript included via script tags in the html). Any suggestions or guides that someone can point me to that offer instructions on how to start trying to incorporate node.js so I can use imports/exports etc.?