ほぼJSなしで完璧なReactフォームをつくる
import { ChangeEvent, FormEvent } from "react"; export default function Form() { const showError = (message: string) => (e: FormEvent<HTMLInputElement>) => { if (e.currentTarget.validity.valueMissing) { e.currentTarget.setCustomValidity(message); } else if ( e.currentTarget.validity.patternMismatch && e.currentTarget.name === "postcode" ) { e.currentTarget.setCustomValidity("郵便番号正しく入力してね"); } else
React+Flux can do in just 137 lines what jQuery can do in 10 | Swizec Teller
Senior Mindset BookGet promoted, earn a bigger salary, work for top companies Start with a free chapterGet a free chapter from the Senior Engineer Mindset book and a sample audiobook chapter, followed by a Senior Mindset 101 email course. React+Flux can do in just 137 lines what jQuery can do in 10 XKCD Automation I waste almost 15 minutes a week on an annoying little task. Every email I send to a
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