Rest Parameter and Spread Operator

Enrico Gruner
Jul 6, 2020 · 1 min read

Two different concepts with the same syntax.

Photo by Daniel Cañibano on Unsplash

The Rest Parameter

A function can also have common parameters as long as the Rest Parameter is the last one.

Rest Parameter vs. Arguments

The Spread Operator

If you extend an object like above, the values on the right side will overwrite possible duplicates on the left side. This method can be used in an immutable context.

Recap

That’s all, folks!

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Enrico Gruner

Written by

Web developer since 1999

The Startup

Get smarter at building your thing. Follow to join The Startup’s +8 million monthly readers & +792K followers.

Enrico Gruner

Written by

Web developer since 1999

The Startup

Get smarter at building your thing. Follow to join The Startup’s +8 million monthly readers & +792K followers.

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