{"id":5653,"date":"2023-01-06T11:09:28","date_gmt":"2023-01-06T03:09:28","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5653"},"modified":"2023-01-06T11:09:28","modified_gmt":"2023-01-06T03:09:28","slug":"%e4%bd%bf%e7%94%a8react-js%e4%be%86%e9%a9%97%e8%ad%89%e8%ba%ab%e9%ab%98%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%e8%ba%ab%e9%ab%98%e7%9a%84%e6%9c%89%e6%95%88%e6%80%a7\/","title":{"rendered":"\u4f7f\u7528React.JS\u4f86\u9a57\u8b49\u8eab\u9ad8\u7684\u6709\u6548\u6027"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"React.JS, isValidHeight\"><\/p>\n<h2>\u4f7f\u7528 React.JS \u4f86\u6aa2\u67e5\u8eab\u9ad8\u662f\u5426\u7b26\u5408\u898f\u5b9a<\/h2>\n<p>React.JS \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u51fd\u5f0f\u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u69cb\u5efa\u9ad8\u6027\u80fd\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5f0f\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u8a0e\u8ad6\u5982\u4f55\u4f7f\u7528 React.JS \u4f86\u6aa2\u67e5\u8eab\u9ad8\u662f\u5426\u7b26\u5408\u898f\u5b9a\u3002<\/p>\n<p><!--more--><\/p>\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\u5373\u8eab\u9ad8\uff0c\u4e26\u8fd4\u56de\u4e00\u500b\u5e03\u6797\u503c\uff0c\u8868\u793a\u8a72\u8eab\u9ad8\u662f\u5426\u7b26\u5408\u898f\u5b9a\u3002<\/p>\n<pre class=\"brush: javascript\">\nfunction isValidHeight(height) {\n  \/\/ \u5728\u6b64\u8655\u6dfb\u52a0\u60a8\u7684\u4ee3\u78bc\n}\n<\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u5728\u51fd\u6578\u4e2d\u6dfb\u52a0\u4e00\u4e9b\u689d\u4ef6\uff0c\u4ee5\u6aa2\u67e5\u8eab\u9ad8\u662f\u5426\u7b26\u5408\u898f\u5b9a\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8eab\u9ad8\u5c0f\u65bc 150 \u516c\u5206\uff0c\u5247\u8fd4\u56de false\uff0c\u5426\u5247\u8fd4\u56de true\u3002<\/p>\n<pre class=\"brush: javascript\">\nfunction isValidHeight(height) {\n  if (height < 150) {\n    return false;\n  } else {\n    return true;\n  }\n}\n<\/pre>\n<p>\u6700\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 React.JS \u4f86\u6e32\u67d3\u4e00\u500b\u7c21\u55ae\u7684\u8868\u55ae\uff0c\u8b93\u7528\u6236\u8f38\u5165\u8eab\u9ad8\uff0c\u4e26\u4f7f\u7528\u6211\u5011\u525b\u525b\u5b9a\u7fa9\u7684\u51fd\u6578\u4f86\u6aa2\u67e5\u8a72\u8eab\u9ad8\u662f\u5426\u7b26\u5408\u898f\u5b9a\u3002<\/p>\n<pre class=\"brush: javascript\">\nimport React, { useState } from 'react';\n\nfunction App() {\n  const [height, setHeight] = useState('');\n  const [isValid, setIsValid] = useState(false);\n\n  const handleChange = (e) => {\n    setHeight(e.target.value);\n    setIsValid(isValidHeight(e.target.value));\n  };\n\n  return (\n    <form>\n      <label>\n        \u8acb\u8f38\u5165\u60a8\u7684\u8eab\u9ad8\uff1a\n        <input type=\"number\" value={height} onChange={handleChange} \/>\n      <\/label>\n      {isValid ? 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