Shimaguchi Tomoya smagch

🗾

Hokkaido

Software engineer.

smagch / hoge.js.flow

Created April 16, 2018 08:04

Flow Action Key

	// @flow
	type Action =
	\| { type: 'FOO' }
	\| { type: 'BAR' };

	type ActionKeys = $PropertyType<Action, 'type'>;

	const fooType: ActionKeys = 'FOO';
	const barType: ActionKeys = 'BAR';
	const invalidType: ActionKeys = 'ffsdlkfjdaslfj'; // Error

smagch / hoge.js

Last active April 14, 2018 12:26

reselect test

	const { createSelector } = require('reselect');

	const ids = [1,2,3];

	const byIds = {
	1: {
	name: 'one'
	},
	2: {
	name: 'two'

smagch / index.html

Last active December 7, 2022 07:40

HTML Canvas text highlighter

	<!DOCTYPE html>
	<html>
	<head>
	<title>Strepsirrhini</title>
	<meta name="viewport" content="user-scalable=no" />

	<style>
	body {
	margin: 0;
	font-size: 1em;

smagch / index.html

Last active December 20, 2016 19:35

zoomable canvas

smagch / test.js

Created October 1, 2016 09:45

Test Getting Tree Data in flattened Array

smagch / sequential-promise-execution-test.js

Created September 13, 2016 12:49

Sequential Promise execution

	// StackOverFlow: http://stackoverflow.com/a/30823708/1248952

	function getTimer(name, timeout) {
	return () => new Promise((resolve, reject) => {
	setTimeout(() => {
	console.log(name);
	resolve();
	}, timeout);
	});
	}

smagch / index.html

Last active September 9, 2016 16:45

Scroll Selection testing

smagch / index.html

Created September 9, 2016 12:56

Infinite scroll with prepending items -- testing scrollTop adjustment

smagch / promise-chain-test.js

Created September 6, 2016 11:59

Promise


	Promise.resolve(100).then(num => {
	console.log('num: ', num);
	return num + 100;
	}).then(num => {
	console.log('num2:', num);
	return new Promise((resolve, reject) => {
	setTimeout(() => {
	console.log('timeout');
	resolve('World');

smagch / densuke.go

Last active May 1, 2016 23:58

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