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望曦开源团队/JavaScript案例合集

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workspace_javascript

string

30.html

30.html 5.64 KB

<!DOCTYPE html>
<html lang="zh-CN">
<head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>字符串匹配 - matchAll</title>
 <style>
 * { margin: 0; padding: 0; box-sizing: border-box; }
 body {
 font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
 background: linear-gradient(135deg, #8E2DE2 0%, #4A00E0 100%);
 min-height: 100vh;
 padding: 20px;
 }
 .container {
 max-width: 900px;
 margin: 0 auto;
 background: white;
 border-radius: 15px;
 box-shadow: 0 10px 30px rgba(0,0,0,0.3);
 overflow: hidden;
 }
 .header {
 background: linear-gradient(135deg, #8E2DE2 0%, #4A00E0 100%);
 color: white;
 padding: 30px;
 text-align: center;
 }
 .header h1 { font-size: 28px; margin-bottom: 10px; }
 .content { padding: 30px; }
 .section { margin-bottom: 30px; }
 .section h2 {
 color: #333;
 margin-bottom: 15px;
 padding-bottom: 10px;
 border-bottom: 2px solid #8E2DE2;
 }
 .code-block {
 background: #f8f9fa;
 border-left: 4px solid #8E2DE2;
 padding: 15px;
 margin: 15px 0;
 border-radius: 5px;
 font-family: 'Courier New', monospace;
 overflow-x: auto;
 }
 .demo-area {
 background: #f8f9fa;
 padding: 20px;
 border-radius: 10px;
 margin: 20px 0;
 }
 .btn {
 background: linear-gradient(135deg, #8E2DE2 0%, #4A00E0 100%);
 color: white;
 border: none;
 padding: 10px 20px;
 border-radius: 5px;
 cursor: pointer;
 font-size: 14px;
 margin: 5px;
 transition: transform 0.2s;
 }
 .btn:hover { transform: translateY(-2px); }
 .result {
 background: white;
 padding: 15px;
 border-radius: 5px;
 margin-top: 15px;
 border: 1px solid #ddd;
 min-height: 50px;
 }
 .result-item {
 padding: 8px;
 margin: 5px 0;
 background: #f3e5f5;
 border-radius: 3px;
 font-family: 'Courier New', monospace;
 }
 .info-box {
 background: #f3e5f5;
 border-left: 4px solid #9c27b0;
 padding: 15px;
 margin: 15px 0;
 border-radius: 5px;
 }
 </style>
</head>
<body>
 <div class="container">
 <div class="header">
 <h1>字符串匹配 - matchAll</h1>
 <p>使用正则表达式全局匹配所有结果</p>
 </div>
 <div class="content">
 <div class="section">
 <h2>📖 语法说明</h2>
 <div class="code-block">
 <code>str.matchAll(regexp)</code>
 </div>
 <div class="info-box">
 <strong>参数:</strong><br>
 - regexp: 正则表达式对象(必须带g标志)<br>
 <strong>返回值:</strong>迭代器对象,包含所有匹配结果
 </div>
 </div>
 <div class="section">
 <h2>🎯 交互演示</h2>
 <div class="demo-area">
 <h3>字符串: "Hello World 123 JavaScript 456"</h3>
 <button class="btn" onclick="matchAllBasic()">全局匹配</button>
 <button class="btn" onclick="matchAllCapture()">捕获组</button>
 <button class="btn" onclick="matchAllDigits()">提取数字</button>
 <button class="btn" onclick="matchAllWords()">提取单词</button>
 <div class="result" id="result"><p style="color: #999;">点击按钮查看结果...</p></div>
 </div>
 </div>
 <div class="section">
 <h2>💡 常用场景</h2>
 <div class="code-block">
 <code>// 提取所有匹配<br>for (const match of str.matchAll(/\\d+/g)) { ... }<br><br>// 转换为数组<br>const matches = [...str.matchAll(/\\w+/g)];</code>
 </div>
 </div>
 </div>
 </div>
 <script>
 const str = 'Hello World 123 JavaScript 456';
 function showResult(title, result) {
 document.getElementById('result').innerHTML = `
 <div class="result-item"><strong>${title}</strong></div>
 <div class="result-item">结果: ${result}</div>
 `;
 }
 function matchAllBasic() {
 const matches = [...str.matchAll(/[a-z]+/gi)];
 const result = matches.map(m => m[0]).join(', ');
 showResult("str.matchAll(/[a-z]+/gi)", result);
 }
 function matchAllCapture() {
 const matches = [...str.matchAll(/(\\w+)\\s+(\\d+)/g)];
 const result = matches.map(m => `${m[1]}: ${m[2]}`).join(', ');
 showResult("str.matchAll(/(\\w+)\\s+(\\d+)/g)", result);
 }
 function matchAllDigits() {
 const matches = [...str.matchAll(/\\d+/g)];
 const result = matches.map(m => m[0]).join(', ');
 showResult("str.matchAll(/\\d+/g)", result);
 }
 function matchAllWords() {
 const matches = [...str.matchAll(/[A-Z][a-z]+/g)];
 const result = matches.map(m => m[0]).join(', ');
 showResult("str.matchAll(/[A-Z][a-z]+/g)", result);
 }
 </script>
</body>
</html>

一键复制编辑原始数据按行查看历史

弦中落宫商提交于 2023年06月14日 14:30 +08:00 . 添加案例:字符串匹配 - matchAll

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>字符串匹配 - matchAll</title>
 <style>
 * { margin: 0; padding: 0; box-sizing: border-box; }
 body {
 font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
 background: linear-gradient(135deg, #8E2DE2 0%, #4A00E0 100%);
 min-height: 100vh;
 padding: 20px;
 }
 .container {
 max-width: 900px;
 margin: 0 auto;
 background: white;
 border-radius: 15px;
 box-shadow: 0 10px 30px rgba(0,0,0,0.3);
 overflow: hidden;
 }
 .header {
 background: linear-gradient(135deg, #8E2DE2 0%, #4A00E0 100%);
 color: white;
 padding: 30px;
 text-align: center;
 }
 .header h1 { font-size: 28px; margin-bottom: 10px; }
 .content { padding: 30px; }
 .section { margin-bottom: 30px; }
 .section h2 {
 color: #333;
 margin-bottom: 15px;
 padding-bottom: 10px;
 border-bottom: 2px solid #8E2DE2;
 }
 .code-block {
 background: #f8f9fa;
 border-left: 4px solid #8E2DE2;
 padding: 15px;
 margin: 15px 0;
 border-radius: 5px;
 font-family: 'Courier New', monospace;
 overflow-x: auto;
 }
 .demo-area {
 background: #f8f9fa;
 padding: 20px;
 border-radius: 10px;
 margin: 20px 0;
 }
 .btn {
 background: linear-gradient(135deg, #8E2DE2 0%, #4A00E0 100%);
 color: white;
 border: none;
 padding: 10px 20px;
 border-radius: 5px;
 cursor: pointer;
 font-size: 14px;
 margin: 5px;
 transition: transform 0.2s;
 }
 .btn:hover { transform: translateY(-2px); }
 .result {
 background: white;
 padding: 15px;
 border-radius: 5px;
 margin-top: 15px;
 border: 1px solid #ddd;
 min-height: 50px;
 }
 .result-item {
 padding: 8px;
 margin: 5px 0;
 background: #f3e5f5;
 border-radius: 3px;
 font-family: 'Courier New', monospace;
 }
 .info-box {
 background: #f3e5f5;
 border-left: 4px solid #9c27b0;
 padding: 15px;
 margin: 15px 0;
 border-radius: 5px;
 }
 </style>
</head>
<body>
 <div class="container">
 <div class="header">
 <h1>字符串匹配 - matchAll</h1>
 <p>使用正则表达式全局匹配所有结果</p>
 </div>
 <div class="content">
 <div class="section">
 <h2>📖 语法说明</h2>
 <div class="code-block">
 <code>str.matchAll(regexp)</code>
 </div>
 <div class="info-box">
 <strong>参数:</strong><br>
 - regexp: 正则表达式对象(必须带g标志)<br>
 <strong>返回值:</strong>迭代器对象,包含所有匹配结果
 </div>
 </div>
 <div class="section">
 <h2>🎯 交互演示</h2>
 <div class="demo-area">
 <h3>字符串: "Hello World 123 JavaScript 456"</h3>
 <button class="btn" onclick="matchAllBasic()">全局匹配</button>
 <button class="btn" onclick="matchAllCapture()">捕获组</button>
 <button class="btn" onclick="matchAllDigits()">提取数字</button>
 <button class="btn" onclick="matchAllWords()">提取单词</button>
 <div class="result" id="result"><p style="color: #999;">点击按钮查看结果...</p></div>
 </div>
 </div>
 <div class="section">
 <h2>💡 常用场景</h2>
 <div class="code-block">
 <code>// 提取所有匹配<br>for (const match of str.matchAll(/\\d+/g)) { ... }<br><br>// 转换为数组<br>const matches = [...str.matchAll(/\\w+/g)];</code>
 </div>
 </div>
 </div>
 </div>
 <script>
 const str = 'Hello World 123 JavaScript 456';
 function showResult(title, result) {
 document.getElementById('result').innerHTML = `
 <div class="result-item"><strong>${title}</strong></div>
 <div class="result-item">结果: ${result}</div>
 `;
 }
 function matchAllBasic() {
 const matches = [...str.matchAll(/[a-z]+/gi)];
 const result = matches.map(m => m[0]).join(', ');
 showResult("str.matchAll(/[a-z]+/gi)", result);
 }
 function matchAllCapture() {
 const matches = [...str.matchAll(/(\\w+)\\s+(\\d+)/g)];
 const result = matches.map(m => `${m[1]}: ${m[2]}`).join(', ');
 showResult("str.matchAll(/(\\w+)\\s+(\\d+)/g)", result);
 }
 function matchAllDigits() {
 const matches = [...str.matchAll(/\\d+/g)];
 const result = matches.map(m => m[0]).join(', ');
 showResult("str.matchAll(/\\d+/g)", result);
 }
 function matchAllWords() {
 const matches = [...str.matchAll(/[A-Z][a-z]+/g)];
 const result = matches.map(m => m[0]).join(', ');
 showResult("str.matchAll(/[A-Z][a-z]+/g)", result);
 }
 </script>
</body>
</html>