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Co-effects

Course: Understanding Re-frame

Updated April 4, 2019

Co-effects are the impure data your Event Handlers need to run. This might include the current value of the Database, the current time, or even a value stored in LocalStorage.

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8 min

Interceptors overview

Interceptors are an "advanced" concept. You can go a long way without using interceptors. However, they're very useful for cross-cutting concerns. My recommendation is to watch this lesson now, but not to worry if it doesn't seem useful yet. If you need it later, you'll know it's there.

Course: Understanding Re-frame

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Lessons

Re-frame Stack Overview

Reagent components

Basic HTML with Hiccup

Hiccup true, false, and nil Attributes

Hiccup Style Attributes

Hiccup class Pattern

Hiccup id and class Shortcuts

Hiccup Nested Tag Shortcut

Hiccup and subcomponents

Hiccup lists, keys, and laziness

Accessing DOM nodes

Form component best practices

Component Re-rendering

Embedding strings of HTML

Embedding Native JS React Components

Re-frame flow overview

Dispatching Events

Handling Events

Effect Handlers

Interceptors overview

Interceptor example

HTML DB Isolation

Reactive Subscriptions

Reactive Subscriptions walkthrough

Choosing where to store state

Naming Events and Subscriptions

Initialization recommendations

Deeply nested databases

Keep Events and Subscriptions Together

Calculations in Subscriptions

Indexed Entities

Indexed Entity Order