Introduction
The JavaScript slang allows us to clone objects in more than one way. We can perform a shallow clone using Object.assign or the spread syntax and a deep clone thanks to the JSON.parse(JSON.stringify()) trick.
Unfortunately, the last solution suffers from a problem: JSON.stringify cannot work on an object that has circular references, erroring out in such a case.
In this episode we'll learn a bit of graph theory to then use this knowledge to build a simple, but efficient, deep cloner.
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