{"id":1576,"date":"2021-08-06T16:58:54","date_gmt":"2021-08-06T07:58:54","guid":{"rendered":"http:\/\/www.agile-software.site\/?p=1576"},"modified":"2021-08-09T10:30:05","modified_gmt":"2021-08-09T01:30:05","slug":"reactcomponent","status":"publish","type":"post","link":"https:\/\/agile-software.net\/?p=1576","title":{"rendered":"React(Component)"},"content":{"rendered":"\n

React\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u304a\u3044\u3066\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002
\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u8868\u793a\u306e\u5185\u5bb9\u3084\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u3001\u51e6\u7406\u306a\u3069\u3092\u4e00\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n

\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u66f8\u304d\u65b9<\/div>\n
function \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u540d (\u5f15\u6570){\n    return       ;\n}<\/code><\/pre><\/div>\n<\/div>\n\n\n\n
\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f<\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u540d\/>\u3068\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\u3053\u308c\u306b\u3088\u308a\u3001\u30bf\u30b0\u306e\u90e8\u5206\u306b\u95a2\u6570\u3067return\u3057\u305f\u30a8\u30ec\u30e1\u30f3\u30c8\u304c\u306f\u3081\u8fbc\u307e\u308c\u308b\u3002<\/p>\n\n\n\n
\u4e0b\u8a18\u306e\u30b3\u30fc\u30c9\u306b\u304a\u3044\u3066React\u306f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4e2d\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u306e\u3067React\u306eCDN\u306f\u8aad\u307f\u8fbc\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u9055\u3044<\/h2>\n\n\n\n
  \u524d\u307e\u3067\u306f\u30af\u30e9\u30b9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8 (Class Component) \u3058\u3083\u306a\u3044\u3068State\u3084\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u304c\u6271\u3048\u306a\u304b\u3063\u305f\u306e\u3067\u3059\u304cReact Hooks\u304c\u767b\u5834\u3057\u305f\u3053\u3068\u306b\u3088\u308a\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3082\u540c\u3058\u3088\u3046\u306a\u6a5f\u80fd\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\n
\n
 \u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8 (Functional Component)<\/h3>\n\n\n\n
import React from 'react';\n\nconst Button = (props) => {\n  return <button>Say, {props.hello}<\/button>;\n};\n\nexport default Button;<\/code><\/pre><\/div>\n<\/div>\n\n\n\n
\n
 \u30af\u30e9\u30b9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8 (Class Component)<\/h3>\n\n\n\n
import React, {Component} from 'react';\n\nclass Button extends Component {\n  render() {\n    return <button>Say, {this.props.hello}<\/button>\n  }\n}\n\nexport default Button;<\/code><\/pre><\/div>\n<\/div>\n<\/div>\n\n\n\n
\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/h3>\n\n\n\nhttp:\/\/www.agile-software.site\/2021\/08\/08\/react-hooks-2\/\n\n\n\n
  function Welcome(props) {\n    return <div className="alert alert-primary">\n      <p className="h4">Hello React!!<\/p>\n    <\/div>\n  }<\/code><\/pre><\/div>\n\n\n\n
\u4f5c\u6210\u3057\u305fWelcome\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u57cb\u3081\u8fbc\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
  let el = (\n    <div>\n      <h5 class="mb-4">{message}<\/h5>\n      <Welcome \/>\n    <\/div>\n  )<\/code><\/pre><\/div>\n\n\n\n
<!DOCTYPE html>\n<html>\n<head>\n  <meta charset="UTF-8" \/>\n  <title>React<\/title>\n  <link rel="stylesheet" href="https:\/\/stackpath.bootstrapcdn.com\/bootstrap\/4.5.0\/css\/bootstrap.min.css" crossorigin="anonymous">\n  <script crossorigin src="https:\/\/unpkg.com\/react@17\/umd\/react.development.js"><\/script>\n  <script crossorigin src="https:\/\/unpkg.com\/react-dom@17\/umd\/react-dom.development.js"><\/script>\n  <script src="https:\/\/unpkg.com\/@babel\/standalone\/babel.min.js"><\/script>\n<\/head>\n\n<body>\n  <h1 class="bg-primary text-white display-4">React<\/h1>  \n  <div class="container mt-4">\n    <div id="root">wait...<\/div>\n  <\/div>\n  <script type="text\/babel">\n  let dom = document.querySelector('#root')\n  let message ="React component page."\n\n  \/\/ \u3053\u308c\u304c\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\n  function Welcome(props) {\n    return <div className="alert alert-primary">\n      <p className="h4">Hello React!!<\/p>\n    <\/div>\n  }\n\n  \/\/ \u8868\u793a\u3059\u308bJSX\n  let el = (\n    <div>\n      <h5 class="mb-4">{message}<\/h5>\n      <Welcome \/>\n    <\/div>\n  )\n  ReactDOM.render(el, dom)  \n  <\/script>\n<\/body>\n\n<\/html><\/code><\/pre><\/div>\n\n\n\n
<\/i><\/div>
\n
\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u5fc5\u305a\u5927\u6587\u5b57\u3067\u59cb\u307e\u308b\u540d\u524d\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<\/div><\/div>\n\n\n\n
\u30af\u30e9\u30b9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/h3>\n\n\n\n
class \u30af\u30e9\u30b9\u540d extends \u7d99\u627f\u3059\u308b\u30af\u30e9\u30b9 {\u30fb\u30fb\u30fb}<\/code><\/pre><\/div>\n\n\n\n
React\u306b\u306f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u6a5f\u80fd\u3092\u4e00\u901a\u308a\u305d\u308d\u3048\u305f\u300cReact.Components\u300d\u3068\u3044\u3046\u30af\u30e9\u30b9\u304c\u3042\u308b\u3002<\/p>\n\n\n\n
class \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u540d extends React.Component{\n}<\/code><\/pre><\/div>\n\n\n\n
\u89aa\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u5b50\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/h2>\n\n\n\n
\u89aa\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067import\u3067\u304d\u308b\u3088\u3046\u306b\u5b50\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067export\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
export\u3068import<\/h2>\n\n\n\n
component\u30d5\u30a9\u30eb\u30c0\u306b\u3042\u308bArticle\u3092<\/p>\n\n\n\n
\n
\n
const Article = (props) => {\n  return (\n    <div>\n      <h2>{props.title}<\/h2>\n      <p>{props.content}<\/p>\n  );\n};\nexport default Article;<\/code><\/pre><\/div>\n<\/div>\n\n\n\n
\n
import Article from ".\/components\/Article";\n\nfunction App() {\n  return (\n    <Article\n      title={}\n      content={}\n    \/>\n  );\n}<\/code><\/pre><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
React\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u304a\u3044\u3066\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u8868\u793a\u306e\u5185\u5bb9\u3084\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u3001\u51e6\u7406\u306a\u3069\u3092\u4e00\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3059\u3002 \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306flt;\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u540d\/gt;<\/p>\n","protected":false},"author":1,"featured_media":1577,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jin_ogp_image_url":"","_jin_last_featured_id":0,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-1576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-react"],"_links":{"self":[{"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/posts\/1576","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1576"}],"version-history":[{"count":6,"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/posts\/1576\/revisions"}],"predecessor-version":[{"id":1639,"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/posts\/1576\/revisions\/1639"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/media\/1577"}],"wp:attachment":[{"href":"https:\/\/agile-software.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}