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Discussion on: Top 20 JavaScript tips and tricks to increase your Speed and Efficiency

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Alex Lohr

About the logical operators in 5, you should always be aware of their defined behavior:

  • a && b yields b if a is truthy, otherwise false
  • a || b yields the first value of a, b that is truthy

This means that a || b && c will return a if it a is truthy. If you are using a tool like prettier, you can just use brackets everywhere and let it figure out where they can be removed safely.

techygeeky profile image
Kapil Raghuwanshi🖥 Author • Edited

I second that @lexlohr ! Nice suggestion to keep in mind.