{"id":5655,"date":"2023-01-06T11:10:56","date_gmt":"2023-01-06T03:10:56","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5655"},"modified":"2023-01-06T11:10:56","modified_gmt":"2023-01-06T03:10:56","slug":"%e4%bd%bf%e7%94%a8react-js%e4%be%86%e9%a9%97%e8%ad%89%e9%87%8d%e9%87%8f%e7%9a%84%e6%9c%89%e6%95%88%e6%80%a7","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e4%bd%bf%e7%94%a8react-js%e4%be%86%e9%a9%97%e8%ad%89%e9%87%8d%e9%87%8f%e7%9a%84%e6%9c%89%e6%95%88%e6%80%a7\/","title":{"rendered":"\u4f7f\u7528React.JS\u4f86\u9a57\u8b49\u91cd\u91cf\u7684\u6709\u6548\u6027"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"React.JS, isValidWeight\"><\/p>\n<h1>\u4f7f\u7528 React.JS \u4f86\u6aa2\u67e5\u662f\u5426\u7b26\u5408\u9ad4\u91cd<\/h1>\n<p>React.JS \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u69cb\u5efa\u9ad8\u6027\u80fd\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5e8f\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 React.JS \u4f86\u6aa2\u67e5\u662f\u5426\u7b26\u5408\u9ad4\u91cd\u3002<\/p>\n<h2>\u4f7f\u7528 React.JS \u4f86\u6aa2\u67e5\u662f\u5426\u7b26\u5408\u9ad4\u91cd<\/h2>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5b9a\u7fa9\u4e00\u500b\u51fd\u6578\uff0c\u8a72\u51fd\u6578\u5c07\u63a5\u53d7\u4e00\u500b\u53c3\u6578\uff0c\u8a72\u53c3\u6578\u5c07\u662f\u4e00\u500b\u9ad4\u91cd\u503c\uff0c\u4e26\u8fd4\u56de\u4e00\u500b\u5e03\u723e\u503c\uff0c\u8868\u793a\u8a72\u9ad4\u91cd\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002<\/p>\n<pre class=\"brush: javascript\">\nfunction isValidWeight(weight) {\n  \/\/ \u5728\u9019\u88e1\u5beb\u51fa\u4f60\u7684\u7a0b\u5f0f\u78bc\n}\n<\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u5728\u51fd\u6578\u4e2d\u5be6\u73fe\u6211\u5011\u7684\u6aa2\u67e5\u908f\u8f2f\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 if\/else \u8a9e\u53e5\u4f86\u6aa2\u67e5\u9ad4\u91cd\u662f\u5426\u7b26\u5408\u8981\u6c42\uff1a<\/p>\n<pre class=\"brush: javascript\">\nfunction isValidWeight(weight) {\n  if (weight > 0 && weight < 200) {\n    return true;\n  } else {\n    return false;\n  }\n}\n<\/pre>\n<p>\u73fe\u5728\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 React.JS \u4f86\u6aa2\u67e5\u9ad4\u91cd\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 React.JS \u7684 <code>useState<\/code> Hook \u4f86\u5275\u5efa\u4e00\u500b\u7d44\u4ef6\uff0c\u8a72\u7d44\u4ef6\u5c07\u63a5\u53d7\u4e00\u500b\u9ad4\u91cd\u503c\uff0c\u4e26\u4f7f\u7528\u6211\u5011\u4e4b\u524d\u5b9a\u7fa9\u7684\u51fd\u6578\u4f86\u6aa2\u67e5\u8a72\u503c\u662f\u5426\u7b26\u5408\u8981\u6c42\uff1a<\/p>\n<pre class=\"brush: javascript\">\nimport React, { useState } from 'react';\n\nfunction WeightChecker() {\n  const [weight, setWeight] = useState(0);\n  const isValid = isValidWeight(weight);\n\n  return (\n    <div>\n      <input\n        type=\"number\"\n        value={weight}\n        onChange={e => setWeight(e.target.value)}\n      \/>\n      {isValid ? 'Weight is valid' : 'Weight is not valid'}\n    <\/div>\n  );\n}\n<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 <code>useState<\/code> Hook \u4f86\u5275\u5efa\u4e00\u500b\u7d44\u4ef6\uff0c\u8a72\u7d44\u4ef6\u5c07\u63a5\u53d7\u4e00\u500b\u9ad4\u91cd\u503c\uff0c\u4e26\u4f7f\u7528\u6211\u5011\u4e4b\u524d\u5b9a\u7fa9\u7684\u51fd\u6578\u4f86\u6aa2\u67e5\u8a72\u503c\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002\u5982\u679c\u9ad4\u91cd\u7b26\u5408\u8981\u6c42\uff0c\u5247\u8a72\u7d44\u4ef6\u5c07\u986f\u793a\u201cWeight is valid\u201d\uff0c\u5426\u5247\u5c07\u986f\u793a\u201cWeight is not valid\u201d\u3002<\/p>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0c\u4f7f\u7528 React.JS \u4f86\u6aa2\u67e5\u662f\u5426\u7b26\u5408\u9ad4\u91cd\u662f\u4e00\u500b\u975e\u5e38\u7c21\u55ae\u7684\u4efb\u52d9\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 React.JS \u7684 <code>useState<\/code> Hook \u4f86\u5275\u5efa\u4e00\u500b\u7d44\u4ef6\uff0c\u8a72\u7d44\u4ef6\u5c07\u63a5\u53d7\u4e00\u500b\u9ad4\u91cd\u503c\uff0c\u4e26\u4f7f\u7528\u6211\u5011\u4e4b\u524d\u5b9a\u7fa9\u7684\u51fd\u6578\u4f86\u6aa2\u67e5\u8a72\u503c\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002<\/p>\n<p><!--more--><\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 React.JS \u4f86\u6aa2\u67e5\u662f\u5426\u7b26\u5408\u9ad4\u91cd\u3002\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86\u4e00\u500b\u51fd\u6578\uff0c\u8a72\u51fd\u6578\u5c07\u63a5\u53d7\u4e00\u500b\u53c3\u6578\uff0c\u8a72\u53c3\u6578\u5c07\u662f\u4e00\u500b\u9ad4\u91cd\u503c\uff0c\u4e26\u8fd4\u56de\u4e00\u500b\u5e03\u723e\u503c\uff0c\u8868\u793a\u8a72\u9ad4\u91cd\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002\u7136\u5f8c\uff0c\u6211\u5011\u4f7f\u7528 React.JS \u7684 <code>useState<\/code> Hook \u4f86\u5275\u5efa\u4e00\u500b\u7d44\u4ef6\uff0c\u8a72\u7d44\u4ef6\u5c07\u63a5\u53d7\u4e00\u500b\u9ad4\u91cd\u503c\uff0c\u4e26\u4f7f\u7528\u6211\u5011\u4e4b\u524d\u5b9a\u7fa9\u7684\u51fd\u6578\u4f86\u6aa2\u67e5\u8a72\u503c\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528React.JS\u4f86\u9a57\u8b49\u91cd\u91cf\u7684\u6709\u6548\u6027\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u6709\u7528\u7684\u6280\u5de7\uff0c\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u5b8c\u6210\u6b64\u4efb\u52d9\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[184,183],"tags":[182,181],"class_list":["post-5655","post","type-post","status-publish","format-standard","hentry","category-react","category-react-js","tag-react","tag-react-js"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1td","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5655","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=5655"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5655\/revisions"}],"predecessor-version":[{"id":5656,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5655\/revisions\/5656"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}