Error-messages Packages

immutable object validator

utility module, immutable type validator & Erlang/Elixir style guards ( but with every imaginable method ).

NgxMatErrors provides an easy, yet flexible solution for displaying error messages in a MatFormField.

Messages validation for error forms

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heaves or Simple Express Validator Or Error Handler (if you don't understand it, read it backwards) is a small library used for data validation and standardization of error messages in express.

type validator & Erlang/Elixir style guards.