Hasty Treat - Handy Utility Functions with Just

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By Wes Bos and Scott Tolinski - Full Stack JavaScript Web Developers. Discovered by Player FM and our community — copyright is owned by the publisher, not Player FM, and audio is streamed directly from their servers. Hit the Subscribe button to track updates in Player FM, or paste the feed URL into other podcast apps.

In this Hasty Treat, Scott and Wes talk about handy utility functions with Just!

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Show Notes

03:44 - What is Just?

06:46 - Some nice ones

  • just-safe-set → deeply setting dynamic object properties
    • set(data, 'a.long[0].path', value)
  • object-typeof
    • Why not use typeof?
      • Everything is an object
    • Why not use array.isArray?
      • Handy to have a switch statement
  • just-*-case
    • Camel, kebab, snake
  • just-compare

10:54 - Why?

  • This is the NPM install of Stack Overflow copy+paste
  • Handy as hell
  • Battle-tested
    • Lots of ways to do simple stuff
    • Sometimes the simple stuff has weird edge cases - these are caught
  • Sometimes your checks can be messy
    • Check if an object is empty
    • 25 lines
    • Just install it

12:05 - Other

  • Great to learn and test yourself
  • There are tests for each function
    • Run them
    • See them fail
    • Try and make it so all the tests pass without looking at the source
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