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src/common/utils/throttle.ts

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+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
+export default function throttle(func, wait, options?: any): () => void {
+  let context, args, result;
+  let timeout = null;
+  let previous = 0;
+  if (!options) options = {};
+  const later = function () {
+    previous = options.leading === false ? 0 : Date.now();
+    timeout = null;
+    result = func.apply(context, args);
+    if (!timeout) context = args = null;
+  };
+  return () => {
+    const now = Date.now();
+    if (!previous && options.leading === false) previous = now;
+    // 计算剩余时间
+    const remaining = wait - (now - previous);
+    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+    // @ts-ignore
+    context = this;
+    // eslint-disable-next-line prefer-rest-params
+    args = arguments;
+    if (remaining <= 0 || remaining > wait) {
+      if (timeout) {
+        // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+        // @ts-ignore
+        clearTimeout(timeout);
+        timeout = null;
+      }
+      previous = now;
+      result = func.apply(context, args);
+      if (!timeout) context = args = null;
+    } else if (!timeout && options.trailing !== false) {
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+      // @ts-ignore
+      timeout = setTimeout(later, remaining);
+    }
+    return result;
+  };
+}