基于orca的源码到远程仓库

resources/web/guide/swiper/svelte/get-changed-params.js

@@ -0,0 +1,39 @@
+import { isObject } from './utils.js';
+import { paramsList } from './params-list.js';
+
+function getChangedParams(swiperParams, oldParams) {
+  const keys = [];
+  if (!oldParams) return keys;
+
+  const addKey = key => {
+    if (keys.indexOf(key) < 0) keys.push(key);
+  };
+
+  const watchParams = paramsList.filter(key => key[0] === '_').map(key => key.replace(/_/, ''));
+  watchParams.forEach(key => {
+    if (key in swiperParams && key in oldParams) {
+      if (isObject(swiperParams[key]) && isObject(oldParams[key])) {
+        const newKeys = Object.keys(swiperParams[key]);
+        const oldKeys = Object.keys(oldParams[key]);
+
+        if (newKeys.length !== oldKeys.length) {
+          addKey(key);
+        } else {
+          newKeys.forEach(newKey => {
+            if (swiperParams[key][newKey] !== oldParams[key][newKey]) {
+              addKey(key);
+            }
+          });
+          oldKeys.forEach(oldKey => {
+            if (swiperParams[key][oldKey] !== oldParams[key][oldKey]) addKey(key);
+          });
+        }
+      } else if (swiperParams[key] !== oldParams[key]) {
+        addKey(key);
+      }
+    }
+  });
+  return keys;
+}
+
+export { getChangedParams };