fix:代码规范

frontend/src/components/canvas/utils/utils.js

@@ -1,26 +1,26 @@
 export function deepCopy(target) {
-    if (typeof target == 'object') {
-        const result = Array.isArray(target)? [] : {}
-        for (const key in target) {
-            if (typeof target[key] == 'object') {
-                result[key] = deepCopy(target[key])
-            } else {
-                result[key] = target[key]
-            }
-        }
-
-        return result
+  if (typeof target === 'object') {
+    const result = Array.isArray(target) ? [] : {}
+    for (const key in target) {
+      if (typeof target[key] === 'object') {
+        result[key] = deepCopy(target[key])
+      } else {
+        result[key] = target[key]
+      }
     }
-    
-    return target
+
+    return result
+  }
+
+  return target
 }
 
 export function swap(arr, i, j) {
-    const temp = arr[i]
-    arr[i] = arr[j]
-    arr[j] = temp
+  const temp = arr[i]
+  arr[i] = arr[j]
+  arr[j] = temp
 }
 
 export function $(selector) {
-    return document.querySelector(selector)
-}
+  return document.querySelector(selector)
+}