first commit

历届学生/韩一伟/项目开发/上课项目/美食App/js/util/index.js

@@ -0,0 +1,52 @@
+class Util {
+
+  //节流throttle代码：
+  throttle(fn,delay) {
+    let canRun = true; // 通过闭包保存一个标记
+    return function () {
+      if (!canRun) return;
+      canRun = false;
+      setTimeout(() => {
+        fn.apply(this, arguments);
+        canRun = true;
+      }, delay);
+    };
+  }
+
+  footer () {
+    var body = $("body")
+    var currentPath = location.href.split("page/")[1];
+
+    var html = `
+    <ul class="footer clear">
+      ${
+        config.footer.map((v,i) => {
+          var isCurrent = v.path.includes(currentPath);
+          return `
+           <li class="${ isCurrent ? 'footer_active' : '' }">
+              <a href="${v.path}">
+                <img src="${isCurrent ? `../img/${v.icon}1.png` : `../img/${v.icon}.png`}">
+                <span>${v.title}</span>
+              </a>
+            </li>
+          `
+        }).toString().replaceAll(",","")
+      }
+    </ul>
+    `
+
+    body.append(html)
+
+  }
+
+  query(name) {
+    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
+    var r = window.location.search.substr(1).match(reg);
+    if (r != null) return unescape(r[2]);
+    return null;
+  }
+
+
+}
+
+var {footer, query, throttle} = new Util();