1：tagValue only needs to be assigned once, which removes an unnecessary step.

Removed a potentially unnecessary temporary variable.
(I'm not sure if it's a personal preference, because this issue is completely negligible.)

2：This reduces a redundant check. When tagValue is empty, we can first check whether field.Name is empty before assigning it.With this approach, the comment in the second block can also be removed.

3：The second invocation of k, v := head(opt, "=") in the original code appears to be unnecessary and can be removed.

binding/form_mapping.go

@@ -143,24 +143,23 @@ type setOptions struct {
 }
 
 func tryToSetValue(value reflect.Value, field reflect.StructField, setter setter, tag string) (bool, error) {
-	var tagValue string
 	var setOpt setOptions
 
-	tagValue = field.Tag.Get(tag)
-	tagValue, opts := head(tagValue, ",")
+	tagValue, opts := head(field.Tag.Get(tag), ",")
 
 	if tagValue == "" { // default value is FieldName
+		if field.Name == "" {
+			return false, nil
+		}
 		tagValue = field.Name
 	}
-	if tagValue == "" { // when field is "emptyField" variable
-		return false, nil
-	}
 
 	var opt string
 	for len(opts) > 0 {
 		opt, opts = head(opts, ",")
 
-		if k, v := head(opt, "="); k == "default" {
+		k, v := head(opt, "=")
+		if k == "default" {
 			setOpt.isDefaultExists = true
 			setOpt.defaultValue = v
 
@@ -171,7 +170,7 @@ func tryToSetValue(value reflect.Value, field reflect.StructField, setter setter
 					setOpt.defaultValue = strings.ReplaceAll(v, ";", ",")
 				}
 			}
-		} else if k, v = head(opt, "="); k == "parser" {
+		} else if k == "parser" {
 			setOpt.parser = v
 		}
 	}