const shallowClone = arr => arr.slice(0);
Creates a shallow-copied clone of the provided array. Since it's a shallow copy, nested objects or arrays will be copied by reference, not duplicated.
The repository & npm package
You can find the all the utility functions from this series at github.com/martinkr/onelinecode
The library is also published to npm as @onelinecode for your convenience.
The code and the npm package will be updated every time I publish a new article.
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Photo by zoo_monkey on Unsplash