优化页面

unpackage/dist/dev/mp-weixin/TUIKit/utils/lodash.js

@@ -0,0 +1,105 @@
+"use strict";
+const FUNC_ERROR_TEXT = "Expected a function";
+function throttle(func, wait, options) {
+  let leading = true, trailing = true;
+  if (typeof func != "function") {
+    throw new TypeError(FUNC_ERROR_TEXT);
+  }
+  if (options && isObject(options)) {
+    leading = "leading" in options ? !!options.leading : leading;
+    trailing = "trailing" in options ? !!options.trailing : trailing;
+  }
+  return debounce(func, wait, {
+    leading,
+    maxWait: wait,
+    trailing
+  });
+}
+function debounce(func, wait, options) {
+  let lastArgs, lastThis, maxWait, result, timerId, lastCallTime, lastInvokeTime = 0, leading = false, maxing = false, trailing = true;
+  if (typeof func != "function") {
+    throw new TypeError(FUNC_ERROR_TEXT);
+  }
+  wait = wait || 0;
+  if (options && isObject(options)) {
+    leading = !!options.leading;
+    maxing = "maxWait" in options;
+    maxWait = maxing ? Math.max(options.maxWait || 0, wait) : maxWait;
+    trailing = "trailing" in options ? !!options.trailing : trailing;
+  }
+  function invokeFunc(time) {
+    const args = lastArgs, thisArg = lastThis;
+    lastArgs = lastThis = void 0;
+    lastInvokeTime = time;
+    result = func.apply(thisArg, args);
+    return result;
+  }
+  function leadingEdge(time) {
+    lastInvokeTime = time;
+    timerId = setTimeout(timerExpired, wait);
+    return leading ? invokeFunc(time) : result;
+  }
+  function remainingWait(time) {
+    const timeSinceLastCall = time - lastCallTime, timeSinceLastInvoke = time - lastInvokeTime, timeWaiting = wait - timeSinceLastCall;
+    return maxing ? Math.min(timeWaiting, maxWait - timeSinceLastInvoke) : timeWaiting;
+  }
+  function shouldInvoke(time) {
+    const timeSinceLastCall = time - lastCallTime, timeSinceLastInvoke = time - lastInvokeTime;
+    return lastCallTime === void 0 || timeSinceLastCall >= wait || timeSinceLastCall < 0 || maxing && timeSinceLastInvoke >= maxWait;
+  }
+  function timerExpired() {
+    const time = Date.now();
+    if (shouldInvoke(time)) {
+      return trailingEdge(time);
+    }
+    timerId = setTimeout(timerExpired, remainingWait(time));
+  }
+  function trailingEdge(time) {
+    timerId = void 0;
+    if (trailing && lastArgs) {
+      return invokeFunc(time);
+    }
+    lastArgs = lastThis = void 0;
+    return result;
+  }
+  function cancel() {
+    if (timerId !== void 0) {
+      clearTimeout(timerId);
+    }
+    lastInvokeTime = 0;
+    lastArgs = lastCallTime = lastThis = timerId = void 0;
+  }
+  function flush() {
+    return timerId === void 0 ? result : trailingEdge(Date.now());
+  }
+  function debounced() {
+    const time = Date.now(), isInvoking = shouldInvoke(time);
+    lastArgs = arguments;
+    lastThis = this;
+    lastCallTime = time;
+    if (isInvoking) {
+      if (timerId === void 0) {
+        return leadingEdge(lastCallTime);
+      }
+      if (maxing) {
+        clearTimeout(timerId);
+        timerId = setTimeout(timerExpired, wait);
+        return invokeFunc(lastCallTime);
+      }
+    }
+    if (timerId === void 0) {
+      timerId = setTimeout(timerExpired, wait);
+    }
+    return result;
+  }
+  debounced.cancel = cancel;
+  debounced.flush = flush;
+  return debounced;
+}
+function isObject(value) {
+  const type = typeof value;
+  return value != null && (type == "object" || type == "function");
+}
+exports.debounce = debounce;
+exports.throttle = throttle;
+//# sourceMappingURL=../../../.sourcemap/mp-weixin/TUIKit/utils/lodash.js.map