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@cezarneaga
cezarneaga / filterArraysRamda.md
Last active April 26, 2023 07:52
Filter array of objects by nested values using ramda: Sometimes you dont have access to backend and you want to filter the response from an endpoint based on certain criteria. While trivial on flat arrays, this gets a bit tricky if the property you want to query is deeply nested. This is where Ramda shines.

Say we have a prop.users of the shape:

const users = [
    {username: 'bob', age: 30, tags: [{name: 'work', id: 1}, {name: 'boring', id: 2}]},
    {username: 'jim', age: 25, tags: [{name: 'home', id: 3}, {name: 'fun', id: 4}]},
    {username: 'jane', age: 30, tags: [{name: 'vacation', id: 5}, {name: 'fun', id: 4}]}
];
@threepointone
threepointone / rulesets.md
Last active September 14, 2017 18:54
rulegroup

Something about css-in-js libs I noticed, but no one really talks about. There exists an implicit idea of a grouped-ruleset, ie - a set of rulesets that apply either directly to an element, or are meant to be composed with other rulesets. an example with 2 libs -

// glamor

const button = css({
 color: 'red',
@developit
developit / *state-machine-component.md
Last active February 6, 2021 00:44
265b lib for building pure functional state machine components. https://github.com/developit/state-machine-component

state-machine-component

A tiny (265 byte) utility to create state machine components using two pure functions.

🔥 JSFiddle Demo

Usage

The API is a single function that accepts 2 pure functions as arguments:

@okonet
okonet / lightning_talk_proposal.md
Last active April 10, 2018 10:09
Make linting great again! -- ReactiveConf 2017 ⚡️talk proposal

Please 🌟 this gist to vote for this proposal!

Make linting great again!

tabs vs spaces

No other topic in software development probably has so much controversy as linting.

With a wrong workflow linting can be really a pain and will slow you and your team down. With a proper setup, though, it can save you hours of manual work reformatting the code and reducing the code-review overhead.

Lightning Talk proposal for ReactiveConf 2017 http://www.reactiveconf.com #ReactiveConf

Porting Prezi to Elm in 99 lines of code

Elm is a statically-typed functional programming language. Its compiler produces safe JavaScript which is guaranteed to be free of runtime exceptions. Moreover Elm is packed with a bunch of powerful abstractions which let us build visual and reactive Web applications in a few lines of code.

As an example, I show the implementation of a simple framework for building Prezi-like presentations. It's just 99 lines of code!

@threepointone
threepointone / glam-for-css-folks.md
Last active September 4, 2022 07:43
why css purists will love glam

I made a little styling lib called glam

(some features are in development)

one

let's start off with the simplest use case. we'll make an 'index.html' page, and assume we've setup our js bundler to output bundle.js

@nikgraf
nikgraf / reactive-2016.md
Last active August 5, 2021 15:31
Proposal for lightning talk at Reactive Conf 2016

Rich text editing with DraftJS Plugins

Earlier this year Facebook open sourced its React based rich text editing framework Draft.js. At Facebook it powers status updates, comments & notes. Others used it to build editors matching Medium’s experience.

Together with a whole team of open source contributors I built a plugin architecture on top of Draft.js. In this talk I walk you through the existing plugins and show how you can build your own feature-rich text editor for the web with only a handful lines of code. 🤓

Draft JS Plugins Logo

This document has moved!

It's now here, in The Programmer's Compendium. The content is the same as before, but being part of the compendium means that it's actively maintained.

@ryyppy
ryyppy / proposal.md
Last active May 20, 2023 02:07
A Life on a Commandline - How to never touch a mouse again. Lightning Talk Proposal for ReactiveConf 2016 (https://reactiveconf.com/)

Proposal for this year's Reactive lightning talks @ReactiveConf - If you want to see my talk, star this gist please :-) [Reactive Blogpost][reactive-conference-blogpost]


A life on a Commandline

As a JavaScript developer, could you imagine using something else than Atom, Sublime or other IDE-like text-editors? During their daily work, people wrangle a lot with different applications, editors, windows, browsers and loose a lot of time because of their tools getting in their way.

// Getter a :: () -> a
// gmap :: ((a -> b), Getter a), Getter b
function gmap(fn, getter) {
return () => fn(getter())
}
// gcombine2 :: ((a,b) -> c, Getter a, Getter ab) -> Getter c
function gcombine2(fn, getter1, getter2) {