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How do Elm subscriptions work? Can you show a naive implementation in JS?

Asked by Kavidassan 06/12/2018 Last Modified 07/01/2019

1 Answer

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John

Web Developer

07/01/2019

Elm subscriptions are similar to Event Handlers in native Javascript. Things like Mouse.clicks -> HTMLElement.addEventListener('click', (event) => { handler code }, Keyboard.downs -> HTMLElement.addEventListener('keydown', (event) => { handler code }In native Javascript you have lots...

Elm subscriptions are similar to Event Handlers in native Javascript.

Things like

Mouse.clicks  ->  HTMLElement.addEventListener('click', (event) => { handler code },

Keyboard.downs -> HTMLElement.addEventListener('keydown', (event) => { handler code }


In native Javascript you have lots of event handlers like

1. DOM Events
2. Touch Events
3. Mouse Events
4. Keyboard events

and many more event handlers to support mordern web developments like
1. Video playback events
2. Audio playback events
3. Server sent events

and many more.

read less

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