Elixir Fundumentals #90 - JSToElm
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Elixir Fundumentals #90

We're getting into the good parts of building with Elixir. From data transformation to connecting to outside systems, things we're picking up in our practice are starting to make sense when actually working on the app!

Covering the basics

  • Elixir has truthy and falsy Boolean conditionals. I feel right at home
  • Variable assignment can only happen on the left side of the equal

For a match to succeed, the LHS and RHS must have the same shape, and each value on the right must match the corresponding value on the left. If the thing on the left is an unbound variable, Elixir binds that variable to the value being matched.

  • The LHS cannot contain any calculations or function calls
  • Using _ for ignoring values. Helpful in getting a RHS and LHS match
  • All variables on the LHS of a match are unbound before the match is made.
  • Solution is to use the pin up arrow, *^ to prefix the variable

Only your posts

  • users should only see their posts.
  • all posts will show on the home page

Resources

Dave Thomas the Coding Gnome

calling an external idp api

get all entries by user id

Travis CI and a VPS

Realworld App

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Published 9 Aug 2019

A show about learning Elm, Functional Programing, and generally leveling up as a JS developer.
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