perf(tpl): update lookup buffer only when needed

marjune163 · marjune163 · commit 08123b440a81 · 2023-06-07T15:39:15.000+08:00
diff --git a/src/tpl/defaultTheme/frontend/index.js b/src/tpl/defaultTheme/frontend/index.js
@@ -394,8 +394,8 @@
 					// key changed, no more prefix match
 					lookupKey = '';
 				}
+				lookupBuffer += key;
 			}
-			lookupBuffer += key;
 			delayClearLookupContext();
 			return getMatchedFocusableSibling(itemList, false, currentLookupStartA, lookupKey || lookupBuffer);
 		}

Original file line number	Diff line number	Diff line change
`@@ -394,8 +394,8 @@`
`394`	`394`	`// key changed, no more prefix match`
`395`	`395`	`lookupKey = '';`
`396`	`396`	`}`
	`397`	`+ lookupBuffer += key;`
`397`	`398`	`}`
`398`		`- lookupBuffer += key;`
`399`	`399`	`delayClearLookupContext();`
`400`	`400`	`return getMatchedFocusableSibling(itemList, false, currentLookupStartA, lookupKey \|\| lookupBuffer);`
`401`	`401`	`}`