JustHTML/Tools/JsMinifierAndFormatter.html at main · X-starRelight/JustHTML · GitHub

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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>JavaScript压缩/格式化工具 - JustHTML 只需网页</title>
  <script>
/**
 * 动态加载（强制去除缓存） CSS 的函数
 * @param {string} src - 要加载的 CSS 的 src 链接
 * @returns {Promise} 返回一个 Promise 对象，用于处理异步加载
 */
function loadStyle(src) {
  return new Promise((resolve, reject) => {
    const link = document.createElement('link');
    link.rel = 'stylesheet';
    link.href = src + '?v=' + new Date().getTime(); // 使用时间戳避免缓存
    link.async = true;
    link.onload = resolve;
    link.onerror = reject;
    document.head.appendChild(link);
  });
}

/**
 * 动态加载（强制去除缓存） JS 的函数
 * @param {string} src - 要加载的 JS 的 src 链接
 * @returns {Promise} 返回一个 Promise 对象，用于处理异步加载
 */
function loadScript(src) {
  return new Promise((resolve, reject) => {
    const script = document.createElement('script');
    script.src = src + '?v=' + new Date().getTime(); // 使用时间戳避免缓存
    script.async = true;
    script.onload = resolve;
    script.onerror = reject;
    document.head.appendChild(script);
  });
}
</script>

  <script>
    loadStyle('../assets/style.css')
    let scriptArray = [
      "../assets/AddHeader_Tools.js",
      "../assets/AddFooter.js",
      "../assets/AddIco.js",
      "../assets/AutoRun.js",
    ]

    scriptArray.forEach(script => {
      loadScript(script);
    });
  </script>

  <script src="../package/Vue/code/vue.global.prod.js"></script>
  <script type="module" src="../package/Sober/code/main.js"></script>

  <style>
    .converter-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .converter-section {
      display: flex;
      flex-direction: column;
    }

    .converter-section textarea {
      flex: 1;
    }

    .controls {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 15px 0;
    }

    .info-box {
      background-color: var(--bg-tertiary);
      padding: 10px;
      border-radius: var(--border-radius);
      margin: 10px 0;
    }

    .options-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 15px;
      margin: 15px 0;
    }

    .option-item {
      display: flex;
      align-items: center;
    }

    .option-item input[type="checkbox"] {
      margin-right: 8px;
    }

    .stats-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 15px;
      margin: 15px 0;
    }

    .stat-item {
      padding: 10px;
      background-color: var(--bg-secondary);
      border-radius: var(--border-radius);
      text-align: center;
    }

    .stat-value {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--accent-color);
    }

    .stat-label {
      font-size: 0.9em;
      color: var(--text-secondary);
    }

    @media (max-width: 768px) {
      .converter-container {
        grid-template-columns: 1fr;
      }
    }
  </style>
</head>
<body>
  <div id="app">
    <div class="container">
      <a href="../index.html" class="back-link">← 返回首页</a>

      <div class="tool-section">
        <h2>JavaScript压缩/格式化工具</h2>
        <p>格式化或压缩JavaScript代码，使其更易读或更紧凑</p>

        <div class="info-box">
          <p><strong>功能说明：</strong></p>
          <p>• 格式化：使JavaScript代码结构清晰，易于阅读和编辑</p>
          <p>• 压缩：移除不必要的空白、注释和换行，减少文件大小</p>
          <p>• 语法检查：检查JavaScript代码的基本语法</p>
        </div>

        <div class="stats-container">
          <div class="stat-item">
            <div class="stat-value">{{ inputSize }}</div>
            <div class="stat-label">输入大小 (字符)</div>
          </div>

          <div class="stat-item">
            <div class="stat-value">{{ outputSize }}</div>
            <div class="stat-label">输出大小 (字符)</div>
          </div>

          <div class="stat-item">
            <div class="stat-value">{{ reductionPercent }}%</div>
            <div class="stat-label">压缩率</div>
          </div>
        </div>

        <div class="converter-container">
          <div class="converter-section">
            <h3>原始JavaScript</h3>
            <textarea
              v-model="inputJs"
              placeholder="在此输入JavaScript代码..."
              rows="15"
            ></textarea>
          </div>

          <div class="converter-section">
            <h3>处理后的JavaScript</h3>
            <textarea
              v-model="formattedJs"
              placeholder="格式化/压缩后的JavaScript代码将在这里显示"
              rows="15"
              readonly
            ></textarea>
          </div>
        </div>

        <div class="options-container">
          <div class="option-item">
            <input type="checkbox" id="preserveComments" v-model="options.preserveComments">
            <label for="preserveComments">保留注释</label>
          </div>

          <div class="option-item">
            <input type="checkbox" id="preserveSemicolons" v-model="options.preserveSemicolons">
            <label for="preserveSemicolons">保留分号</label>
          </div>

          <div class="option-item">
            <input type="checkbox" id="beautify" v-model="options.beautify">
            <label for="beautify">美化输出</label>
          </div>
        </div>

        <div class="controls">
          <button @click="formatJs">格式化JavaScript</button>
          <button @click="minifyJs">压缩JavaScript</button>
          <button @click="validateJs">验证语法</button>
          <button @click="clearAll">清空</button>
          <button @click="loadExample">加载示例</button>
        </div>

        <div class="result" v-if="validationResult">
          <h3>验证结果：</h3>
          <p>{{ validationResult }}</p>
        </div>
      </div>
    </div>
  </div>

  <script>
    const { createApp, ref, computed } = Vue;

    createApp({
      setup() {
        const inputJs = ref('');
        const options = ref({
          preserveComments: false,
          preserveSemicolons: true,
          beautify: true
        });

        // 计算属性：输入大小
        const inputSize = computed(() => inputJs.value ? inputJs.value.length : 0);

        // 计算属性：输出大小
        const outputSize = computed(() => formattedJs.value ? formattedJs.value.length : 0);

        // 计算属性：压缩百分比
        const reductionPercent = computed(() => {
          if (inputSize.value === 0) return 0;
          return Math.round(((inputSize.value - outputSize.value) / inputSize.value) * 100);
        });

        // 简单的JavaScript格式化/压缩函数
        const processJs = (js, minify = false) => {
          if (!js) return '';

          let result = js;

          if (minify) {
            // 压缩模式 - 移除注释和多余的空白
            if (!options.value.preserveComments) {
              // 移除单行注释
              result = result.replace(/\/\/.*$/gm, '');
              // 移除多行注释
              result = result.replace(/\/\*[\s\S]*?\*\//g, '');
            }

            // 移除多余的空白
            result = result.replace(/\s+/g, ' ');

            // 移除不必要的空格（在括号、操作符等周围）
            result = result.replace(/\s*([{}();:+*\/\-])\s*/g, '$1');

            // 恢复分号（如果需要）
            if (options.value.preserveSemicolons) {
              result = result.replace(/;/g, ';');
            }

            result = result.trim();
          } else {
            // 格式化模式 - 添加适当的缩进和换行
            result = formatJsBeautify(result);
          }

          return result;
        };

        // JavaScript美化函数
        const formatJsBeautify = (js) => {
          if (!options.value.beautify) return js;

          let result = js;
          let indentLevel = 0;
          const indent = '  '; // 两个空格作为一个缩进

          // 简单的美化算法
          result = result
            .replace(/{/g, '{\n')
            .replace(/}/g, '\n}\n')
            .replace(/;/g, ';\n')
            .replace(/\n+/g, '\n') // 合并多个换行符
            .split('\n')
            .map(line => {
              const trimmedLine = line.trim();

              if (!trimmedLine) return '';

              // 处理缩进
              if (trimmedLine.endsWith('}') || trimmedLine.endsWith('};')) {
                indentLevel--;
              }

              const indentedLine = indent.repeat(Math.max(0, indentLevel)) + trimmedLine;

              if (trimmedLine.endsWith('{') ||
                  trimmedLine.endsWith('if') ||
                  trimmedLine.endsWith('else') ||
                  trimmedLine.endsWith('for') ||
                  trimmedLine.endsWith('while')) {
                indentLevel++;
              }

              return indentedLine;
            })
            .filter(line => line.trim() !== '')
            .join('\n');

          return result;
        };

        // 格式化的JavaScript
        const formattedJs = computed(() => {
          return processJs(inputJs.value, false);
        });

        // 验证结果
        const validationResult = ref('');

        // 格式化JavaScript
        const formatJs = () => {
          inputJs.value = processJs(inputJs.value, false);
        };

        // 压缩JavaScript
        const minifyJs = () => {
          inputJs.value = processJs(inputJs.value, true);
        };

        // 验证JavaScript语法
        const validateJs = () => {
          if (!inputJs.value) {
            validationResult.value = '请输入JavaScript代码';
            return;
          }

          try {
            // 尝试创建一个Function来验证语法
            new Function(inputJs.value);
            validationResult.value = 'JavaScript语法有效！';
          } catch (e) {
            validationResult.value = `语法错误: ${e.message}`;
          }
        };

        // 清空所有
        const clearAll = () => {
          inputJs.value = '';
          validationResult.value = '';
        };

        // 加载示例
        const loadExample = () => {
          inputJs.value = `function calculateArea(width,height){if(width<=0||height<=0){console.log("宽度和高度必须大于0");return null;}var area=width*height;return area;}var result=calculateArea(10,5);console.log("面积是: "+result);`;
        };

        return {
          inputJs,
          formattedJs,
          options,
          validationResult,
          inputSize,
          outputSize,
          reductionPercent,
          formatJs,
          minifyJs,
          validateJs,
          clearAll,
          loadExample
        };
      }
    }).mount('#app');
  </script>
</body>
</html>