Egor egorguscha

Computation priority

For sure you've been noticed that function must be pure... or watch there is a place for side effect. Yes and we will tell about this in that section - Computation priority

A real example of queue priority - people awaiting medical treatment hospital, extreme emergency cases will have the highest priority and move on the start of the queue less significant at the end.

The main of the reason for creating Computation priority was that side effects:

Letting go first pure functions
Following consistent state of application

	import { I18nTypes } from './I18nTypes';
	const lang = 'en';

	interface Langs {
	[key: string]: string \| string[];
	}

	/tslint:disable:no-var-requires/
	const langs: Langs = require(`./langs/${lang}.json`);

	const setInitialState = (settings) => {
	const {
	itemHeight,
	amount,
	tolerance,
	minIndex,
	maxIndex,
	startIndex
	} = settings;
	const viewportHeight = amount * itemHeight;

	import React, {useEffect, useState} from 'react'
	import {FixedSizeList} from 'react-window'
	import {Table} from 'antd';
	// https://jsonplaceholder.typicode.com/posts?_page=1&_limit=10
	import 'antd/dist/antd.css'


	const columns = [
	{
	title: 'User ID',

	function css(tags, ...attrs) {
	const value = style(tags, ...attrs)
	const node = document.createElement('style')
	node.id = 'insertedStyle'
	node.appendChild(document.createTextNode(value))
	const sheet = document.getElementById('insertedStyle')
	if (sheet) {
	sheet.disabled = true
	sheet.parentNode.removeChild(sheet)
	}

	import {ChangeEvent, FocusEvent} from 'react'
	import {
	createEvent,
	createEffect,
	createStore,
	forward,
	combine,
	guard,
	sample,
	Store,

	// @flow
	import { $baseUri } from "../model/config.store"
	import { $token } from "../model/token"

	type Method = "GET" \| "POST" \| "PUT" \| "DELETE"

	type Options = {
	headers?: { [key: string]: string },
	parse?: "text" \| "json" \| "noparse",
	baseUri?: string,

	/* eslint-disable no-magic-numbers, unicorn/no-process-exit, no-console, prefer-template */
	const fs = require('fs');
	const path = require('path');
	const dotenv = require('dotenv');
	const dotenvExpand = require('dotenv-expand');

	const paths = require('./paths');

	// Make sure that including paths.js after env.js will read .env variables.
	delete require.cache[require.resolve('./paths')];

	#!/usr/bin/env node
	console.log(123)