text/template: fix fisrt for string

mkideal · mkideal · commit 6df4fad62239 · 2024-10-12T22:22:40.000+08:00
diff --git a/text/templates/funcs.go b/text/templates/funcs.go
@@ -1470,7 +1470,7 @@ func first(v Slice) (Any, error) {
 			if len(s) == 0 {
 				return null, nil
 			}
-			return reflect.ValueOf(s[0]), nil
+			return reflect.ValueOf(s[0:1]), nil
 		}
 		return null, fmt.Errorf("first: expected slice, array or string, got %s", v.Type())
 	}

Original file line number	Diff line number	Diff line change
`@@ -1470,7 +1470,7 @@ func first(v Slice) (Any, error) {`
`1470`	`1470`	`if len(s) == 0 {`
`1471`	`1471`	`return null, nil`
`1472`	`1472`	`}`
`1473`		`- return reflect.ValueOf(s[0]), nil`
	`1473`	`+ return reflect.ValueOf(s[0:1]), nil`
`1474`	`1474`	`}`
`1475`	`1475`	`return null, fmt.Errorf("first: expected slice, array or string, got %s", v.Type())`
`1476`	`1476`	`}`